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All observing logs tagged with Jupiter

2007-05-19


Location: Woodland Waters (South Lincolnshire, UK)
From: 2007-05-19 20:20 UT
To: 2007-05-19 23:41 UT
Equipment: Antares 905
Canon EOS 400D
Notes:

Joined John and Kevin at Woodland Waters for an observing session. The sky was still very light when we arrived, Venus and a crescent Moon hung over the western horizon. Some cloud scattered around but appearing to clear.

Giving Guests a Tour

From: 2007-05-19 20:40 UT
To: 2007-05-19 21:00 UT

A short while after we'd set the 'scopes up and left them to cool down we were joined by a young couple asking what we were looking at. We explained that we weren't looking at anything specific and asked them if they wanted to have a look through the 'scopes.

Over the next 20 minutes or so we gave them a tour of Venus, the Moon and Saturn. As usually happens Saturn seemed to go down a treat.

While showing them Saturn I noticed that the image wasn't too good this evening. It was possible to make out the planet's shadow on the rings but that was about all that could be seen. I couldn't make out the Cassini Division.

Venus was also a bit of a problem too. While it was possible to make out the phase (it was apparent that the phase was smaller than the last time I observed it) there was a lot of false colour (the contrast booster helped a little but not as much as it has in the past) and the image was very unsteady.

Another guest

From: 2007-05-19 21:01 UT
To: 2007-05-19 21:05 UT

Just after the first guests left we had another visit. This person didn't stay very long, just long enough to have a quick look at Saturn through Kevin's ETX125. That sight got a very obvious "wow!" (as it does with most people).

Photographing Venus and the Moon

From: 2007-05-19 21:10 UT
To: 2007-05-19 21:30 UT

I got the Canon EOS 400D out of the car, set it on the tripod, and took some wide angle views of Venus and the Moon together:

Venus and the Moon

Venus and the Moon

Venus, the Moon and Me

Stopping for Coffee

From: 2007-05-19 21:37 UT
To: 2007-05-19 21:47 UT

By 21:37 UT it was obvious that it was going to be a very damp observing session. I noticed that lots of dew was forming on everything. I covered up the log book and anything else that might suffer from getting wet and decided to stop for a short coffee break.

M51

From: 2007-05-19 21:47 UT
To: 2007-05-19 21:57 UT

John had got M51 in his 80mm 'scope and I had a look at it (I would have got it in the 905 too but it was in a position that I can't get that 'scope in to — it's not very good at pointing almost overhead). At first it was difficult to see but, slowly, a very faint ghostly patch came into view using averted vision. I was impressed that I could see anything given that the sky still wasn't anywhere near fully dark.

M57

From: 2007-05-19 22:00 UT
To: 2007-05-19 22:15 UT

Given that Lyra was at a reasonable hight I decided to see how M57 looked in the 905. I found it without too much trouble using the 25mm eyepiece (in that it simply looked like a slightly out-of-focus star) and I then switched to the 6mm eyepiece

With the 6mm it simply looked like a faint disc. There was no hint of the ring structure that I've seen before in the 130M.

Given that the sky still wasn't fully dark I decided to compare the view I had with the view using the Neodymium filter. It did appear to improve things slightly although I wouldn't have said that it brought out any more detail. While I wasn't really comparing like-for-like in terms of observing conditions I'm of the impression that this is an object better left to the 130M.

Antares 905 Fogging Up

Time: 2007-05-19 22:16 UT

By 22:16 UT I noticed that the 905 was starting to fog up. Because of this I decided to cover it up and see if it would clear.

M3

From: 2007-05-19 22:20 UT
To: 2007-05-19 22:30 UT

While the 905 was recovering I had a look at M3 thought Kevin's ETX125. For some reason I've never observed this cluster globular cluster before. I was surprised at how striking the view was.

Observing with a 15mm eyepiece, at first all I could see was a diffuse patch in the sky. As my eye adjusted, and especially when using averted vision, I started to see a mottled effect in the cluster and I soon had the first distinct impression that I was making out individual stars.

Jupiter via EXT125

From: 2007-05-19 23:10 UT
To: 2007-05-19 23:20 UT

After a short coffee break we noticed that Jupiter was visible between trees, low on the horizon. Kevin turned his ETX125 onto it and I spent a short while having a look. All four moons were visible, one to one side of the planet and three to the other side. The view, however, was terrible. It was impossible to make out any detail whatsoever on Jupiter. This wasn't really that surprising given that the planet was so low down and also given that we were observing it thought some thin (and apparently growing) cloud.

Jupiter via 905

From: 2007-05-19 23:23 UT
To: 2007-05-19 23:30 UT

I uncovered the 905 and turned that towards Jupiter. Using the 6mm eyepiece and the contrast booster the view was no better than it had been via the ETX125. I spent a short while just observing but the view never improved and I never saw any detail at all on the planet. At no point could I even make out the two main bands.

End of Session

Time: 2007-05-19 23:41 UT

Over the past hour or so more and more thin cloud had been forming over is and was starting to spread out more. By around 23:41 UT it was obvious that it wasn't going to get any better so we decided to call an end to the session.


2006-07-13


Location: Billingborough (South Lincolnshire, UK)
From: 2006-07-13 13:00 UT
To: 2006-07-13 13:05 UT
Equipment: Solarscope
Temperature: 24.6C ...
Dew Point: 7.6C ...
Humidity: 34% ...
Wind Speed: 0.4mph ...
Wind Dir: North West ...
Pressure: 1025.3hPa ...
Notes:

Another very clear and warm day. Not a single cloud in the sky. Took the Solarscope out to do a sunspot count.

Sun

From: 2006-07-13 13:00 UT
To: 2006-07-13 13:05 UT

Just as with yesterday, no marks of any sort were visible on the Sun.

Location: Billingborough (South Lincolnshire, UK)
From: 2006-07-13 21:25 UT
To: 2006-07-13 22:30 UT
Equipment: Antares 905
7x50 Binoculars
Temperature: 15.4C ...
Dew Point: 7.7C ...
Humidity: 60% ...
Wind Speed: 0.8mph ...
Wind Dir: North North East ...
Pressure: 1029.2hPa ...
Notes:

Nice clear night, less haze than last night. Very slight breeze now and again. Also felt cooler than last night. Decided to get the 905 out to have another look at Jupiter.

Bright satellite

Time: 2006-07-13 21:26 UT

While setting up the 905 to look at Jupiter I noticed a very bright satellite in the same general part of the sky. It was "above" Jupiter and was heading south to north in the western part of the sky. When I first saw it I would have said it was at least as bright as Jupiter but as it headed further north it faded rapidly.

Sadly, as normally happens with these chance observations, I wasn't really in a position to make careful notes of exact location and path.

At the time I suspected that it might be an Iridium flare but, after checking later on Heavens Above, it would appear that there was no predicted flare around that time. I'm left wondering what it was.

Update 2006-07-17: According to stella, a poster on the SPA's BB, what I saw was "classified surveillance satellite, USA 186, 05-42A".

Jupiter

From: 2006-07-13 21:30 UT
To: 2006-07-13 21:57 UT

With the 905 and the 6mm eyepiece all four main moons were visible with Ganymede on its own on one side of the planet and Io, Callisto and Europa grouped in a nice, neat triangle on the other side. TYC5575-473-1 was still close by but its position in relation to Jupiter was obviously different from last night.

The image was pretty good from the start. The main northern band stood out very well and had very visible signs of mottling. Interestingly the main southern band didn't stand out anywhere near as much and, at times, it almost appeared to be lighter than the surrounding surface. I've never noticed or seen this before — they've always appeared to be about the same shade to me in the past.

Around 21:47 UT the image started to boil a little and some of the detail was lost. Out of curiosity I decided to try the ND25 filter. I don't know if it was just my mind or my eyes playing tricks on me but, with the reduced brightness, I was sure I could see a hint of brown in the colour of the planet — almost like you see in many pictures of Jupiter.

By 21:57 UT the image was getting really bad so I decided to take a short break and possibly come back to look at something else.

Test of 7x50 binocular

From: 2006-07-13 22:10 UT
To: 2006-07-13 22:25 UT

A couple of weeks back, while at the RAF Waddington airshow, I picked up a cheap and unnamed 7x50 binocular. I mostly got them so I could throw them in the car and take them anywhere (and, at the time, mostly because I forgot to take a binocular to the show). Given that the skies were still too light to get any "serious" observing done I decided to try them out at night.

They turned out to be less than brilliant for astronomical work in that, towards the edge of the field, stars would appear slightly out of focus. Towards the middle of the field everything seemed fine. That said, because they're quite small and light they did feel very comfortable for just lying back and sweeping the sky.

Another bright satellite

Time: 2006-07-13 22:27 UT

I noticed another bright satellite, this time in the western sky, not far "below" The Plough. I saw it brighten a bit and then fade. I wasn't paying a whole lot of attention but I would estimate that it got at least as bright as Alioth.

Checking later on Heavens Above I suspect that it might have been Iridium 81 as that was predicted to flare around 22:18 UT. I'm a little concerned that the times are so far apart (at worst I probably noted the time down as being a couple of minutes late) but the other details given for the flare seem to match.

Update 2006-07-17: According to stella, a poster on the SPA's BB, this wasn't Iridium 81 but was, instead, "Terra, 99-68A".

End of session

Time: 2006-07-13 22:30 UT

Sky was still quite light and I really need to be getting off to bed so decided to call it a night.


2006-07-12


Location: Billingborough (South Lincolnshire, UK)
From: 2006-07-12 12:55 UT
To: 2006-07-12 13:00 UT
Equipment: Solarscope
Temperature: 27.5C ...
Dew Point: 11.8C ...
Humidity: 38% ...
Wind Speed: Calm ...
Pressure: 1021.1hPa ...
Notes:

Warm, clear and calm day. Took the Solarscope out to do a sunspot count.

Sun

From: 2006-07-12 12:55 UT
To: 2006-07-12 13:00 UT

No visible sign of active area 899 today. No markings of any kind were visible on the surface of the Sun.

Location: Billingborough (South Lincolnshire, UK)
From: 2006-07-12 21:20 UT
To: 2006-07-12 22:25 UT
Equipment: Antares 905
Temperature: 21.4C ...
Dew Point: 12.2C ...
Humidity: 56% ...
Wind Speed: Calm ...
Pressure: 1020.0hPa ...
Notes:

Clear night but with a good hint of haze about. Quite warm. The sky was still light but I decided to get the 905 out to have a look at Jupiter.

Jupiter

From: 2006-07-12 21:20 UT
To: 2006-07-12 21:56 UT

Using the 905 with the 6mm lens I had a pretty good view of Jupiter right away. All of the four main Jovian moons were visible, all on one side of the planet. Ganymede was furthest out and Io, Europa and Callisto were closer in to the planet, bunch up in a line that ran diagonal to the planet. Also close by, "above" Jupiter, I could see TYC5575-473-1.

Detail on the planet itself was pretty good with both the main bands showing some mottling and colour changes towards both the poles standing out.

I spent some time just observing, watching and waiting for very steady moments. At no time did the view get any better than my initial view but there were times when the image would deteriorate quite rapidly.

Starting at 21:43 UT, and given that the view was generally pretty good, I decided to test some of my filters to get a feel for what difference they made. The #15 yellow/orange didn't seem to given any improvement, neither did the #21 orange. In both cases they appeared to make it harder to make out any detail.

I next tried the #56 green filter and this appeared to give a slightly improvement. The contrast of the two main bands against the rest of the planet seemed to be improved.

Finally tried the #80A medium blue filter. This gave a very obvious improvement. The variation in the shades over the whole disc really stood out. Much better than with the other filters (or without a filter).

At 21:56 UT I decided to have a short break.

A Hedgehog, and end of session

From: 2006-07-12 22:10 UT
To: 2006-07-12 22:25 UT

During the break, while sitting with a drink and just admiring the sky, I kept hearing odd sounds on the lawn. While I'm used to hearing my cat playing in the garden while I observe, this was different. I kept listening and finally hunted down the source of the noises:

A Hedgehog

A hedgehog was having a wander around the lawn, probably on the hunt for something to eat. Sadly the only thing I had with me to take an image was my mobile phone, and it's not terribly good at taking pictures at night.

After being distracted by the visitor for some time I noticed that the sky seemed more hazy and was becoming quite washed out (probably due to the just-past-full Moon rising) so, given that and the fact that I needed to be up for work in the morning, I decided to call it a night.


2006-06-28


Location: Billingborough (South Lincolnshire, UK)
From: 2006-06-28 14:55 UT
To: 2006-06-28 15:00 UT
Equipment: Solarscope
Temperature: 22.9C ...
Dew Point: 10.5C ...
Humidity: 47% ...
Wind Speed: Calm ...
Pressure: 1018.7hPa ...
Notes:

Today has been similar to yesterday in that the day has mostly been overcast except for a brief spell of broken cloud in the afternoon. During this brief spell of sunshine I took the Solarscope out to do a sunspot count.

Sun

From: 2006-06-28 14:55 UT
To: 2006-06-28 15:00 UT

Area 897 was more spread out when compared to yesterday (hardly surprising given that it has rotated further into view) and I could count 5 spots in the region. The darkening I noted yesterday wasn't evident today.

New area 898 has come over the limb and comprises of a single, large, circular spot with quite a pronounced penumbra.

Location: Billingborough (South Lincolnshire, UK)
From: 2006-06-28 21:35 UT
To: 2006-06-28 23:34 UT
Equipment: Antares 905
Sky-Watcher Explorer 130M
Temperature: 16.8C ...
Dew Point: 9.0C ...
Humidity: 60% ...
Wind Speed: Calm ...
Pressure: 1019.1hPa ...
Notes:

Calm, clear evening with some thin cloud about. The sky wasn't very dark yet but given that I could see Jupiter from my usual observing spot I decided to get the 905 out and have a look.

Jupiter, including a transit event

From: 2006-06-28 21:35 UT
To: 2006-06-28 22:59 UT

Started out with the 905 and 6mm eyepiece. The image was awful. I could only just see the two main bands. The reason for this was probably down to the quality of the sky and also down to the fact that the 'scope hadn't had much time to cool down yet.

I could see all 4 Jovian moons (one of them was very close to the planet) and I could also see a reasonably bright background star that could have been mistaken for a 5th moon (later checking with Starry Night showed that it was HIP70714 ).

I then added the #80A Medium Blue filter to the 'scope and had another look. While this dulled the image a little it did also appear to improve the contrast. The two main bands stood out a little better, darkening towards the poles became obvious and in moments when the image was steady there was obvious mottling in the bands.

I'd say that tonight's view of Jupiter is the worst one I've had this apparition.

I've never compared the view of Jupiter in the 130M with that in the 905 so, at around 21:53 UT, I brought the 130M out and left it to cool off. A short while later (probably with too little cooling-off time) I lined Jupiter up in the 130M and used the 6mm eyepiece to have a look. The imagine was really terrible — much worse then the image in the 905. While the view was much brighter there was hardly any detail to speak of, almost as if it was impossible to get sharp focus.

I switched from the 6mm to the 10mm eyepiece and things looked a little better. This time the quality compared more favourably with that as seen in the 905+6mm but, even then, I'd say that the 905 won out in terms of detail that could be seen. It would appear that I need to give the 130M a good check-up at some point. While I did give the collimation a quick check when I brought the 130M out I guess I need to have it a really fine tweak some time soon.

I'm also seeing why planetary observers tend to prefer a refractor rather than a reflecting telescope.

Back at the 905 (with the 6mm), at around 22:19 UT, I noticed that the moon closest to Jupiter had apparently got even closer. Compared to when I started observing this evening it was harder to see it, the gap between it and the planet being obviously narrower. I stepped into the office to check what was going on and I confirmed that the moon was Europa and that it was due to start a transit of the planet at around 22:38 UT. My first ever transit of a Jovian moon! Annoyingly, when I came back out of the office, I noticed that some thin cloud had moved in the way and was dulling the view of Jupiter.

By 22:31 UT the image had improved again. I could just see Europa but it was impossible to see a gap between it and the planet — it looked more like a bump on the limb.

By 22:36 UT I had lost sight of Europa. From then until 22:59 UT I kept observing to see if I could detect Europa in front of the planet but I never got a hint of it. This was made harder by the fact that more thin cloud was moving in the way and significantly dulling the view.

Random sweeping of the Milky Way

From: 2006-06-28 23:00 UT
To: 2006-06-28 23:34 UT

To finish off the session I decided to use the 905 for one of the main purposes I intended: just sweeping around the sky and seeing what I can find. Using the 32mm eyepiece I started to have a random sweep and, almost right away, stumbled on The Coathanger (an asterism I first observed almost a year ago).

After spending some more time just sweeping around (mostly around The Milky Way in and around Cygnus) I decided to call it a night at 23:34 UT.


2006-06-08


Location: Billingborough (South Lincolnshire, UK)
From: 2006-06-08 14:05 UT
To: 2006-06-08 14:13 UT
Equipment: Solarscope
Temperature: 23.2C ...
Dew Point: 14.1C ...
Humidity: 57% ...
Wind Speed: Calm ...
Pressure: 1024.4hPa ...
Notes:

Very clear and calm day. Just the odd bit of very high-level cloud around, also a slight haze in the sky.Took the Solarscope out to do a quick sunspot count.

Sun

From: 2006-06-08 14:05 UT
To: 2006-06-08 14:13 UT

Area 892 looked a little less detailed when compared to yesterday with only 8 spots visible.

Area 893 also looked a little less complex too with just 2 spots visible (compared to yesterday's 3).

Location: Billingborough (South Lincolnshire, UK)
From: 2006-06-08 21:45 UT
To: 2006-06-08 22:55 UT
Equipment: Antares 905
Temperature: 16.5C ...
Dew Point: 11.2C ...
Humidity: 71% ...
Wind Speed: Calm ...
Pressure: 1024.1hPa ...
Notes:

Mostly clear night with some thin cloud around (I could, for example, see a pretty nice halo around the Moon). The sky was still very light but given that Jupiter was in a position where I could see it from my back garden I decided to have a quick session looking at it with the 905.

Jupiter, including a shadow transit

From: 2006-06-08 21:45 UT
To: 2006-06-08 22:55 UT

I got Jupiter lined up in the 905 using a low-power eyepiece and then I dropped in the 6mm eyepiece. Initially the image was pretty poor, moving around quite a bit and the visible detail was much less than previous views of the planet with the same equipment. That said, the 'scope hadn't had any chance to cool down.

As usual the two main bands were easily visible and there was obvious variation on the rest of the disc. I could only make out three moons (later checking showed them to be Europa, Ganymede and Callisto). Europa and Callisto were some distance out, either side of the planet while Ganymede was quite close to the planet.

Around 21:58 UT, in very steady moments (the image was rapidly getting better), I started to notice a very clear, sharp, dark spot near the north pole of Jupiter. My initial impression was that I was seeing a shadow of one of the moons (presumably the Ganymede). To be sure that this wasn't just an artifact I tried changing eyes, rotating the eyepiece and shifting the 'scope about to place the planet in a different part of the field of view. Nothing I did changed the image.

After watching this a bit more I grabbed my sketching box and, between 22:10 UT and 22:15 UT, I made the following rough sketch so that I could compare the view I had with some other source later.

Rough sketch of my view of Jupiter

After doing the sketch I popped into the office and fired up Starry Night to check what I was seeing. It confirmed that I was seeing a shadow and that it was the shadow of Ganymede. My first ever Jovian shadow transit!

Around 22:30 UT some thin cloud moved in such that my view of Jupiter got a lot worse. The amount of visible detail was reduced and I could no longer see the shadow. By 22:39 UT the cloud was still hanging around and the image had deteriorated even more. I also noticed that the air suddenly felt quite damp and that a thin layer of dew was forming on everything.

By 22:50 UT the cloud had finally cleared and the view of Jupiter had improved again (although it didn't seem to be as crisp as it had earlier on) but I still couldn't make out the shadow any more. At 22:55 UT, given that I still couldn't make out the shadow and that I needed to get to bed soon, I called it a night on the session.

Checking the following day, using the "Jupiter's Moons" tool on the Sky & Telescope website, I've now further confirmed that it was Ganymede's shadow. The times given for the event are:

  • 21:18 UT Ganymede's shadow begins to cross Jupiter.
  • 23:08 UT Ganymede's shadow leaves Jupiter's disk.

This would explain why I was unable to see the shadow towards the end of the session: it would have been very close to the edge of the planet's disc and I would probably have been unable to resolve it that close with the equipment I was using.


2006-05-11


Location: Billingborough (South Lincolnshire, UK)
From: 2006-05-11 13:00 UT
To: 2006-05-11 13:06 UT
Equipment: Solarscope
Temperature: 21.6C ...
Dew Point: 7.4C ...
Humidity: 40% ...
Wind Speed: 3.5mph ...
Wind Dir: North North West ...
Pressure: 1017.2hPa ...
Notes:

Very warm, clear day. No real haze to speak of and no clouds visible. Did a quick sunspot count with the Solarscope.

Sun

From: 2006-05-11 13:00 UT
To: 2006-05-11 13:06 UT

With the Solarscope I could only see a single active area (880) which only contained a single spot.

Location: Billingborough (South Lincolnshire, UK)
From: 2006-05-11 20:45 UT
To: 2006-05-11 22:51 UT
Equipment: Meade 10x50 Binoculars
Antares 905
Temperature: 14.1C ...
Dew Point: 5.7C ...
Humidity: 57% ...
Wind Speed: Calm ...
Pressure: 1015.8hPa ...
Notes:

Reasonably clear evening, no cloud visible, although the sky did look a little murky towards the horizon. Moon close to full (about 95% waxing gibbous) so moonlight was bound to make for a pretty awful sky.

Having read in a couple of places that fragment B of 73P Schwassmann-Wachmann 3 was in outburst (even to the point of claiming that it was visible to the naked eye in moonlight) I decided to have a session to see if I could find it.

Saturn

From: 2006-05-11 20:50 UT
To: 2006-05-11 20:59 UT

Sky not quite properly dark yet so I decided to start with another look at Saturn. Using the 905 with the 6mm eyepiece I had a view that wasn't one of the best I'd ever had. The image wasn't very crisp and was often unsteady. Despite this most of the usual detail could still be seen. Both shadows were very obvious and there was a hint of banding on the planet itself. The Cassini Division kept popping in and out of view but was mostly hard to see.

Titan was visible although, with direct vision, would pop in and out of view (first time I've ever seen that happen). With averted vision I could see it with little problem.

State of the sky

Time: 2006-05-11 21:05 UT

By this point the sky was still very light, it was very hard to see all but the brightest of stars. Looking at Ursa Minor, for example, I could only easily see the three main stars (Polaris, Kochab and Pherkad).

Comet 73P Schwassmann-Wachmann 3

From: 2006-05-11 21:07 UT
To: 2006-05-11 22:35 UT

From 21:07 UT to around 21:18 UT I did an initial sweep for either fragment B or fragment C of 73P Schwassmann-Wachmann 3 with the binocular but failed to locate either of them. This seemed to confirm that the sky was pretty terrible.

After double checking the location of fragment B (it was located about way between Deneb and Sulafat) I did another sweep that ended around 21:34 UT but I'd still not found it.

Finally, after a third attempt, at around 21:45 UT I was sure I'd finally found fragment B. It was in exactly the right location but very hard to see. All I could detect was a faint, ghostly patch with no definition to it. It was right on the edge of my vision with direct vision and only a little better when using averted vision.

To be sure that I had located it I made a mental note of the pattern of stars close by and popped into the office to check the location with Starry Night. This check confirmed that I had located fragment B.

Between around 22:15 UT and 22:35 UT I made further observations, comparing the view in the binocular with the view in the 905 using the 32mm eyepiece. It appeared to be easier to see with the binocular than with the 905.

By the time I stopped attempting to observe fragment B the sky hadn't improved, if anything I'd have said that it had got a little worse. Even as late as 22:35 UT I could still only easily see the three main stars in Ursa Minor.

Jupiter

From: 2006-05-11 22:40 UT
To: 2006-05-11 22:51 UT

I noticed that it was now possible to have a look at Jupiter from round the side of the house so I moved the 905 into position, lined it up on the planet and dropped in the 6mm eyepiece. The view was very impressive, possibly the best view I've had yet (which is saying something considering how low down it is this apparition). Not only could I see the two main bands, they both had a very mottled appearance that was always visible. Also, the rest of the disc had very obvious variation with hints of detail to them. The polar regions were obviously very different in colour from the rest of the planet.

All four of the main moons were easily visible. When I had the planet in the middle of the field of view Callisto, which was furthest out, didn't actually fit in the field.

At 22:51 UT I decided to call an end to the session. Conditions were far from ideal and I needed to be up at a reasonable time the following morning.


2006-05-05


Location: Billingborough (South Lincolnshire, UK)
From: 2006-05-05 12:50 UT
To: 2006-05-05 12:54 UT
Equipment: Solarscope
Temperature: 22.8C ...
Dew Point: 8.8C ...
Humidity: 41% ...
Wind Speed: 7mph ...
Wind Dir: South South West ...
Pressure: 1018.2hPa ...
Notes:

Mostly clear, just a few clouds about, slight breeze. Nice and warm. Did a quick sunspot count with the Solarscope.

Sun

From: 2006-05-05 12:50 UT
To: 2006-05-05 12:54 UT

With the Solarscope I could only see two active areas (as best as I can tell they were 878 and 880). Could only see a single spot in each area giving a total of two spots for today.

Location: Billingborough (South Lincolnshire, UK)
From: 2006-05-05 19:34 UT
To: 2006-05-05 21:45 UT
Equipment: Meade 10x50 Binoculars
Antares 905
Temperature: 18.3C ...
Dew Point: 8.2C ...
Humidity: 52% ...
Wind Speed: Calm ...
Pressure: 1019.1hPa ...
Notes:

A clear, warm and calm evening. The sky was still very light (the Sun hadn't long set). I decided to set up the 905 to have a session observing the Moon (which was just past first ). I also intended to observe Saturn and, if I was out late enough and the position was right, Jupiter.

All being well I also wanted to try and further observe 73P Schwassmann-Wachmann 3 although I didn't hold out too much hope given how bright the Moon was going to be.

Searching for Saturn in a light sky

From: 2006-05-05 19:34 UT
To: 2006-05-05 19:41 UT

Although the sky was still very light I did a quick sweep of the area to the west of the Moon with the binoculars to see if I could spot Saturn. Pretty quick I spotted it.

Having found it with the binoculars I tried to get it in the 905 but, even using the 32mm eyepiece to give me a fighting chance, I just couldn't track it down. I guess, if I'd persisted, I'd have got it in the end but I decided to give up and move on to the Moon.

Imaging the Moon with a mobile phone

From: 2006-05-05 19:51 UT
To: 2006-05-05 19:55 UT

I lined the Moon up in the 905 and, because I had my mobile phone in my pocket, I decided to try taking some shots. I knew they weren't going to be anything clever but I thought I'd have a try anyway. All attempts were using afocal projection while simply holding the phone in my hand.

I took a number of images but most of them were really terrible and were deleted on the spot. The following were the best of the bunch (which gives a good idea of how terrible the others were).

Moon with mobile phone

Moon with mobile phone

The Moon

From: 2006-05-05 20:14 UT
To: 2006-05-05 21:00 UT

After taking the images shown above, and after a short break from "proper" observing to show my wife the Moon via the 905, I stayed with the Moon to work my way along parts of the terminator and areas close to it.

The first features that really stood out were Ptolemaeus, Alphonsus and Arzachel. While Ptolemaeus was mostly fully lit by the sunlight (the floor looking very smooth except for a couple of small but obvious craters within it) Alphonsus and Arzachel both had their floors in shadow but with their central peaks lit.

Further south I could see (running east to west) Nasireddin, Huggins and Orontius. The latter was mostly in shade, in the night side of the terminator, but the "back" wall (in relation to the direction of the sunlight) was fully lit. I could also very clearly see a small crater in the wall (which is unnamed on the map I had with me).

To the north, on the eastern side of Mare Imbrium, I could clearly see Mons Piton casting a very long shadow which seemed to have a conical shape about it.

Over in the night side I could clearly see the peak of Mons Pico. Near it, just to the south, I could see another sunlit peak. The mountain in question is on my map but isn't named (I can see I'm going to have to get a more detailed map of the Moon some time soon).

The next thing I saw, clearly cutting a path through Montes Alpes, was Vallis Alpes. Although I've seen plenty of images of this feature I was still quite taken by how striking it was. This is a good candidate for further observations and possibly a good candidate for a lunar sketch at some point in the future.

The shadows from Montes Alpes were very striking — I counted 6 distinct shadows stretching out into the floor of Mare Imbrium. One of them appeared much longer than the others and I took this to be the shadow of Mons Blanc.

Other mountain ranges that stood out were Montes Spitzbergen (which could be seen just north of Archimedes and more or less on the terminator) and Montes Archimedes (which was also more or less on the terminator, south of Archimedes).

The next thing I noticed, in the terminator, was the eastern wall of Plato. Above it, in Mare Frigoris, I then noticed what looked like some sort of ridge running more or less east to west. I could see a hint of the feature on my map but no name is given. While the impression on the map is that it isn't a very distinct feature the view I had was one of a feature that was very significant (not very surprising really given its proximity to the terminator — the western end of it seemed to disappear into the terminator). To some degree the view I had reminded me of Rupes Recta, except this feature more or less runs east/west (unlike Rupes Recta, which runs more or less north/south). The "higher" side (the side that appeared to be sunlit) was the north side — the south side seeming to be in shadow.

At 20:52 UT the seeing suddenly deteriorated and for the first time this session there seemed to be a breeze about. Given that the image in the 'scope seemed to be getting worse I finally decided, at 21:00 UT, that it would be a good time to take a short break.

Assessing the viewing conditions

Time: 2006-05-05 21:10 UT

By now the sky had got quite dark but the moonlight was visibly causing problems — making the sky look quite washed out. Conditions were so bad that I couldn't actually make out the Keystone. Conditions didn't look good for viewing the comet.

Although it was hard to tell at this point there was a hint of some cloud moving in on the eastern horizon.

Brief look at Saturn

From: 2006-05-05 21:15 UT
To: 2006-05-05 21:25 UT

Had a brief look at Saturn with the 905 and the 6mm eyepiece. It wasn't anywhere near the best view I've had of it this apparition but I was still able to make out both of the shadows, a hint of handing on the planet's surface and, from time to time, the Cassini Division would pop in and out of view.

A quick hunt for Comet Schwassmann-Wachmann 3

From: 2006-05-05 21:20 UT
To: 2006-05-05 21:30 UT

Used the binoculars quickly hunt for fragments B or C of 73P Schwassmann-Wachmann 3 but failed to find them. I did note that M13 was only just visible so it didn't come as any surprise that I failed.

Assessing the chances of observing Jupiter

From: 2006-05-05 21:33 UT
To: 2006-05-05 21:34 UT

Wandered around the house looking for a possible vantage point that would give me a good view of Jupiter but couldn't find a location that would give a clear view with the 905. I did have a quick look with the binoculars and could briefly see a hint of the Jovian moons but the eyepieces misted up and put a stop to that.

Increasing cloud — end of session

From: 2006-05-05 21:35 UT
To: 2006-05-05 21:45 UT

Just after checking on Jupiter I noticed that it was starting to fade and, shortly after that, it totally disappeared. I quickly became obvious that a bank of cloud was moving in from the east. Within a couple of minutes it was almost overhead and I could see no stars all the way down to the eastern horizon. Because it looked like there wasn't going to be a break in this (and the forecasts for the evening had it clouding up with a chance of rain) I called an end to the session.


2006-05-01


Location: Billingborough (South Lincolnshire, UK)
From: 2006-05-01 20:10 UT
To: 2006-05-01 22:17 UT
Equipment: Naked Eye
Meade 10x50 Binoculars
Antares 905
Sky-Watcher Explorer 130M
Temperature: 8.9C ...
Dew Point: 2.8C ...
Humidity: 66% ...
Wind Speed: Calm ...
Pressure: 1003.3hPa ...
Notes:

Calm, clear evening. Still light when I first stepped out. Some high-level haze was visible but it seemed to be patchy and didn't look like it would cause much of a problem. Waxing crescent Moon (about 12% illuminated) in the western sky.

The main plan for the evening was to try and observe comet 73P-C Schwassmann-Wachmann 3. With this in mind I set up both the 905 and the 130M — the idea being that the former would be useful for locating the comet and the latter would be better for actual observing once I'd located it.

The Moon

From: 2006-05-01 20:14 UT
To: 2006-05-01 20:30 UT

While waiting for it to get dark (and while letting the 130M have plenty of time to cool down) I decided to turn the 905 on the Moon. I started with the 25mm eyepiece. Right away the earthshine looked very impressive, good enough to see plenty of features on the night side of the Moon.

Mare Crisium was fully illuminated with the terminator running through Mare Fecunditatis.

I spent a little time using different eyepieces and quickly running up and down the terminator, enjoying the sights of the various craters and mountains that could be picked out. I made no serious effort to do any real lunar observing as that wasn't the main point of the evening.

I then spent a bit of time trying to get a couple of images, through the 25mm eyepiece, using the camera in my mobile phone. Sadly the day-side of the Moon was always too washed out and none of the images were any good.

Saturn

From: 2006-05-01 20:37 UT
To: 2006-05-01 21:00 UT

Next, while waiting for it to get dark enough to look for the comet, I decided to have a look at Saturn. I started with the 905 and the 10mm eyepiece. Right off the planet's shadow on the rings was obvious. The image was sharp but often unsteady. There was no obvious hint of the Cassini Division.

Next I switched to the 6mm eyepiece and there was a good view of the shadow of the rings on the planet. There was also a faint suggestion of banding on the planet's surface. The image wasn't as steady as previous sessions but, with the 6mm, I did start to get the odd hint of the Cassini Division in steady moments.

One thing that was very obvious was, when compared to the last couple of views I've had of Saturn with the 905 (2006-03-24 and 2006-04-03), the planet was looking smaller than I recalled.

Next, as a comparison test, I turned the 130M on Saturn. Using the 6mm eyepiece the image was (obviously) much bigger than with the 905 but it was also much softer too. At no point could I get as sharp a focused image as I could with the 905. I'd say that the 130M didn't give me any more detail on Saturn than the 905 did, perhaps even a little less. The image was, obviously, much brighter with the 130M.

I find it hard to believe that there'd be that much difference between the two, this suggests to me that I really need to give the 130M a good check-up and redo the collimation (it has been a long time since I checked the collimation).

International Space Station

Time: 2006-05-01 21:08 UT

Noticed a very bright satellite heading west to east, just below Leo. Watched it head down into Virgo and then fade. Given the look, location and speed I suspected that it was the International Space Station.

Checking later, it was the ISS.

Haze starting to form

Time: 2006-05-01 21:12 UT

Noticed that some thicker high-level haze was starting to form. This was causing a slight halo around the Moon and, looking over to Hercules, I could see that it was difficult (but not impossible) to see the Keystone asterism.

Satellite

Time: 2006-05-01 21:18 UT

Watched a satellite pass south to north just west of Botes.

According to `stella' on the SPA BB what I saw was a rocket body called Resurs 1-4.

First look for Comet 73/P-C Schwassmann-Wachmann 3

Time: 2006-05-01 21:27 UT

Despite the fact that conditions were less than ideal I decided to have a first go at looking for Schwassmann-Wachmann 3. Using the 905 with the 25mm eyepiece I started out at Epsilon Herculis and worked my way to the general location of the comet (actually, fragment C of the comet — that's all I was concentrating on this evening — mostly because I ran out of time and good conditions). With no effort at all I found the comet.

The general impression was that it was faint, fuzzy and conical shaped. With direct vision it was almost impossible to see but with averted vision it was easy enough to detect. At times there was a hint of blue/white colour to it.

Next I dropped the 32mm eyepiece in the 130M and located the comet with that. This time I could see it with direct vision and there was a very obvious hint of a tail — even more so when averted vision was used.

Still on the 130M I then switched to the 25mm eyepiece and then the 15 mm eyepiece but found that, the shorter the focal length I used, the worse the image became. The 32mm eyepiece was easily giving the best view.

At this point, using the 130M and the 25mm eyepiece, I made a mental note of the location of the comet in relation to the stars close by with a view to seeing if I could detect movement with a later observation.

Comet 73/P-C Schwassmann-Wachmann 3 with 10x50 binocular

Time: 2006-05-01 21:45 UT

I grabbed my Meade 10x50 binocular and quickly located the comet without any effort. It was very obvious — impossible to miss. When compared with M13 the comet appeared bigger and more diffuse.

Jupiter with the naked eye

Time: 2006-05-01 21:55 UT

From the bottom of the garden I noticed, through some trees over the road from me, that Jupiter was up and looking very bright. Sadly, given the position, it was almost impossible to use either of the telescopes to have a look. Given that Jupiter is going to be rather low to the horizon for this apparition there's a good chance that I won't get to observe it (at least not from home) as it'll probably be obscured by the house most of the time.

Second look at Comet 73/P-C Schwassmann-Wachmann 3

From: 2006-05-01 22:10 UT
To: 2006-05-01 22:17 UT

After a short break I went back to the 130M with the 25mm eyepiece to see if I could detect any movement (based on the earlier mental note). It was instantly obvious that there had been movement in that time. Given the rate of movement I saw in such a short period of time I noted that it would be interesting to see how the location compared on subsequent nights (assuming, of course, that the weather plays ball and I get the chance to observe it again any time soon).

By 22:17 UT thicker haze had moved in from the west and it looked like it was more or less horizon to horizon. At this point I decided to call an end to the session.


2006-03-03


Location: Billingborough (South Lincolnshire, UK)
From: 2006-03-03 04:50 UT
To: 2006-03-03 05:40 UT
Equipment: Meade 10x50 Binoculars
Temperature: -6.5C ...
Dew Point: -9.0C ...
Humidity: 83% ...
Wind Speed: Calm ...
Pressure: 996.4hPa ...
Notes:

Woke up early and the sky was clear so I decided to head out with the 10x50 binoculars to see if I could spot Pojmanski (C/2006 A1).

Search for Comet Pojmanski (C/2006 A1), plus Venus and Jupiter

From: 2006-03-03 04:50 UT
To: 2006-03-03 05:40 UT

Using the Meade 10x50 binoculars I had an initial look for comet Pojmanski (C/2006 A1). Spent 5 or 10 minutes scanning the right area of the sky but failed to find it. This probably wasn't helped by the fact that the eastern horizon was rather murky (this was made obvious by the fact that Venus wasn't very clear when I looked at it).

I had a short break and then tried again but failed a second time.

Having failed to find the comet I had another quick look at Venus. Even in the binoculars I'm sure I could see a hint of a phase.

Before finishing I decided to have a quick look at Jupiter, currently in Libra. It was quite low to the south. In the binocular Europa, Io, Callisto and Ganymede all seemed to be visible. Also, just south of the planet, I could see Nu Librae.

Location: Billingborough (South Lincolnshire, UK)
From: 2006-03-03 14:00 UT
To: 2006-03-03 14:05 UT
Equipment: Solarscope
Temperature: 6.0C ...
Dew Point: -7.4C ...
Humidity: 38% ...
Wind Speed: 6.3mph ...
Wind Dir: North West ...
Pressure: 995.8hPa ...
Notes:

Quick check of the Sun with the Solarscope to see if there are any Sunspots.

Sunspot count

From: 2006-03-03 14:00 UT
To: 2006-03-03 14:05 UT

The Sun appeared totally unblemished, just like yesterday.


2005-09-02


Location: Billingborough (South Lincolnshire, UK)
From: 2005-09-02 19:13 UT
To: 2005-09-02 23:25 UT
Equipment: Naked Eye
Meade 10x50 Binoculars
Sky-Watcher Explorer 130M
Notes:

Quite a long observing session — probably the longest I've done yet. The evening started with trying to track down Venus and Jupiter close to each other after sunset and then carried on with me getting the 130M out for a couple of hours.

Hunting for Venus and Jupiter

Time: 2005-09-02 19:13 UT

Venus and Jupiter were just past conjunction so I headed out to the West side of the village with a view to trying to catch them just before sunset. By the time I got set up the Sun had set and the Belt of Venus was visible. Hardly any cloud in the sky although a reasonable covering on the Western horizon.

Spent a short while scanning the horizon with the naked eye but couldn't see either of the planets.

More hunting for Venus and Jupiter

Time: 2005-09-02 19:23 UT

Spent a short while trying to find them with 10x50 binocular. Still couldn't see anything. With the binocular it was very obvious that there was quite a bit of cloud all along the part of the horizon I wanted to be watching.

Failed to find Venus and Jupiter

Time: 2005-09-02 19:50 UT

Having failed to see them (defeated by cloud on the horizon) I headed back to the house. I double checked everything with Starry Night to be sure that I'd been looking in the right place at the right time — I had. Venus would have set at around 19:37 UT so both planets would have been very close to the horizon while I was looking so they were obviously obscured by the cloud.

Out into the garden with 130M — M57

From: 2005-09-02 21:02 UT
To: 2005-09-02 21:23 UT

Now that darkness had really set in I set up the 130M in the garden and decided to check everything by having a quick look at M57.

Sky appeared slightly misty and dew was forming on everything very quickly. Quite a damp feel to the air.

Initially I found it very hard to find it. The problem seemed to be that the red-dot finder was way off and, even after taking some time to adjust it I was still having problems. It seems that, for some reason, the finder itself is now sat on the 'scope such that I don't have enough "slack" in the adjustment to get the 'scope and the dot lined up. I suspect I'm going to have to try and adjust how the finder sits on the 'scope so that the fine-tuning can be done with enough "slack" in the system.

Finally found M57 after a little effort and made a point of making a mental note of how far off the dot in the finder it was so finding other objects should be a little easier.

M56

From: 2005-09-02 21:29 UT
To: 2005-09-02 21:47 UT

Decided to hunt down M56 with the 130M. Started out with 25mm eyepiece. Found it with some trouble. It appeared to be a very small, faint, fuzzy patch. Switched to the 15mm eyepiece and it still appeared to be rather faint. Quite indistinct, no real hint of any actual shape to speak of. Couldn't resolve any stars at all.

Switched to 10mm eyepiece. Although appearing bigger it was still faint, fuzzy and indistinct. There was, however, a hint of a shape now. My best description would be that it seemed vaguely triangular.

With the 6mm eyepiece it was bigger still and the description of it with the 10mm seemed to hold true for the view with the 6mm. As globulars go M56 has to be the hardest target I've looked for yet. With some extra effort and generally with averted vision there did seem to be a slight grainy appearance to it giving a hint that I was looking at something that was composed of stars. That view came and went and was very fleeting.

Strange cloud moment

From: 2005-09-02 22:03 UT
To: 2005-09-02 22:07 UT

Decided to go for M27 next. Roughly lined up the 'scope on the right area and turned my back on the sky for a few moments to check a couple of charts. When I turned back the part of the sky I wanted to look at was now apparently obscured by a cloud. There was no warning of the cloud, I didn't see it coming in from any part of the sky, it just seemed to appear out of nowhere.

Then, almost as quickly as it had appeared, it disappeared. It wasn't that it moved away, it seemed to just disappear (again, while my back was turned). Also, at the same time, I noticed that the NW part of the sky had brightened compared to a little earlier (although, in this case, it didn't seem to be cloud as I could still see stars).

Most odd.

Meteor near Cygnus

Time: 2005-09-02 22:25 UT

While looking in that direction saw a rather bright meteor head roughly East to West just North of Cygnus.

M27

From: 2005-09-02 22:30 UT
To: 2005-09-02 22:50 UT

Back to hunting for M27. Took a little effort to locate — partly down to the issue with the finder and also partly down to the fact that I was looking for a small, faint fuzzy object so I was doing a very careful sweep of the general area. When it finally appeared in the field of view (initially using 25mm eyepiece) I was shocked and amazed at how large and bright it appeared!

The initial appearance was of a large, grey/blue misty patch with a very definite "dumbbell" appearance. Although the overall effect was that it was roughly circular I could see that two opposing sides of the nebula were much brighter and more obvious then the rest of the circumference.

A stunning sight!

Switched to the 15mm eyepiece. The view was even better. Slightly brighter and the "dumbbell" appearance was more pronounced. Made the following rough sketch:

Sketch of M27

Mars

From: 2005-09-02 22:58 UT
To: 2005-09-02 23:25 UT

Finally, a reasonable night out with the 'scope and Mars is getting into a position where I stand a chance of seeing it. That said, I was still observing with a sky that was getting more and more misty while looking in the general direction of a bright streetlight, through a fair bit of atmosphere and with eyepieces that were starting to fog up.

Started with the 25mm eyepiece. All I could see was a non-pin-point bright object that had a hint of orange colouring to it. Next switched to the 10mm eyepiece. Now it started to look like a planet. It had an obvious gibbous phase to it and in brief moments of steady seeing (the image was swimming around rather badly) I thought I could detect a variation in the shading of the surface.

Added a #21 Orange filter to the 10mm eyepiece. Was impressed with how well it seemed to clear up the image. With the filter, in the moments if steady seeing, the variation in the colour of the surface was much more pronounced.

Next used the 6mm eyepiece with the #21 Orange filter. The "swimming" of the image was now much more pronounced so it was harder to get a handle on the image. However, on the odd occasion when the image did settle down the dark patch was very visible. It looked the same as with the 10mm eyepiece only more obvious.

By 23:25 the dew problem was starting to get pretty bad and more and more mist was forming at low level. Decided to call an end to the session.


2005-07-12


Location: Billingborough (South Lincolnshire, UK)
From: 2005-07-12 20:17 UT
To: 2005-07-12 23:23 UT
Equipment: Sky-Watcher Explorer 130M
Notes:

Reasonable evening's observing. Started out while the sky was still very light (not even sure that the Sun had set when I first set up) because I wanted to align and test the new Red-Dot Finder that I'd purchased from Scopes'n'skies.

Also wanted to try the chance to test out a set of Lunar Filters that I'd recently purchased.

Despite there being a fair bit of high-level "misty" cloud kicking about I stayed out for quite a while with a view to trying to see M57.

Align and test Red-Dot Finder

Time: 2005-07-12 20:17 UT

It took a while to get the finder properly aligned — I originally made the mistake of trying to use a reasonably distant object on the horizon but when I then tried to use the finder to line up on the Moon I just wasn't getting it. Finally gave up on that I used the Moon as the alignment target. That worked a treat.

After the alignment I slewed the 'scope away from the Moon and used the finder to get me back on it. The Moon was in the eyepiece (25mm) first time.

Very impressed with the finder, it's so much easier to use than the finder that came with the 130M.

The Moon and aborted filter test

From: 2005-07-12 20:27 UT
To: 2005-07-12 20:42 UT

Started to have a proper look at the Moon with the 25mm eyepiece. Noted that the image was quite unsteady even at this low magnification. This probably had as much to do with tube-currents as anything else given that the telescope was still very warm and I'd not been out that long.

Around 20:42 UT, just as I'd attached the ND25 filter to the 25mm eyepiece and reinserted the eyepiece into the telescope, I started to lose the Moon behind the house nextdoor so I had to give up on that test.

Jupiter, testing new finder and ND25 filter

From: 2005-07-12 20:50 UT
To: 2005-07-12 21:11 UT

Noticed that I could now see Jupiter with the naked eye so decided to use this as a second target for testing the new finder. Lined up with the finder and then looked through the 25mm eyepiece. Almost spot on first time! Took the opportunity to fine-tune the alignment against Jupiter.

Switched to the 6mm eyepiece but found it hard to get reasonable focus and the image was very unsteady (again, probably tube-currents combined with unsteady air in general and seeing not being terribly good).

Added the ND25 filter to the 6mm eyepiece and, surprisingly, found that it seemed easier to pick out a good point of focus.

At 21:11 UT Jupiter was obscured by a cloud.

Summer Triangle

Time: 2005-07-12 21:12 UT

Noticed that, while the sky was still quite light, and while there was some thin cloud above me, I could now clearly see the Summer Triangle.

Also noted that Arcturus was easily visible.

Jupiter

From: 2005-07-12 21:20 UT
To: 2005-07-12 21:22 UT

Jupiter became visible again. Went back to it with the 10mm and 2x barlow. This time the image was reasonable. The two main belts were obvious and I also noticed a moon very close to the planet.

At 21:22 UT I started to make a sketch of Jupiter and its moons but I lost it behind the house nextdoor so the sketch didn't get finished.

Testing effect of filters on a star

From: 2005-07-12 21:37 UT
To: 2005-07-12 21:50 UT (approximate)

Decided to test the effect of the ND25 and ND13 filters on a bright star. Selected Deneb as a suitable target.

Using the 10mm eyepiece on its own the star seems to be "too bright" to see well. There is an obvious four-pointed flare caused by the spider in the scope.

With the addition of the ND25 filter things get a lot better. While I can still see the flare caused by the spider it is nowhere near as obvious as it is without the filter.

With the ND13 there is no flare at all. It is, however, obvious that I'm not seeing a pin-point of light. I suspect that this comes down to a number of things: collimation (still need to get around to making a habit of doing this), possible lingering tube currents, a general unsteadiness of the atmosphere and the fact that there is still a hint of high-level haze around.

Based on that little test I get the impression that the ND25 and ND13 filters might come in handy when trying to split a reasonably close and reasonably bright binary.

Mizar in Ursa Major

From: 2005-07-12 22:00 UT
To: 2005-07-12 22:26 UT

Had another look at Mizar again. While doing so I noticed a 4th star very close that I'd not noticed last time. Checked with Starry Night it seems that it is TYC3850-257-1, a magnitude 7.56 star. I noted this down because it's interesting that I didn't seem to notice it last time

Did a rough sketch of what I saw:

Sketch of Mizar

Also note the faint star to the far right of the sketch. Not sure what that is; I need to check. It would estimate that it is somewhat fainter than TYC3850-257-1. Checking later with Starry Night it is TYC3853-654-1, a magnitude 9.56 star.

At 22:26 UT, just as I was finishing up the above and removing the 10mm eyepiece from the telescope, I managed to drop the eyepiece onto hard paving! Blast! As best as I could tell it didn't damage the eyepiece although it did leave a rather nasty looking scuff mark on the metal barrel.

Finding M57

From: 2005-07-12 22:31 UT
To: 2005-07-12 22:44 UT

Decided to go looking for M57 (the Ring Nebula) in Lyra. First lined up in the general area using the new Red-Dot finder then looked through the telescope itself with the 25mm eyepiece. Nothing immediately stood out. However, while initially looking, a satellite passed right through the field of view. I turned round to look with the naked eye but couldn't see it at all.

Back at the telescope, I moved the field of view around a little and almost immediately saw what I thought must be M57. My initial impression was that, in contrast to the stars in the field, there was a faint, ghostly gray "blob". Noted that I could only see it with averted vision. With the 25mm eyepiece there didn't appear to be any hint of it being an actual ring (this might not have been helped by the fact that the sky still wasn't fully dark and that there was still some high-level haze about).

Made a rough sketch of what I could see, marking some of the brighter stars I could see in the field. This was made a little difficult by the field being partially obscured from time to time by some of the cloud/mist:

Sketch of M57

M57 with 15mm eyepiece

From: 2005-07-12 22:52 UT
To: 2005-07-12 23:01 UT

Switched to the 15mm eyepiece. With averted vision a good hint of the ring structure could be seen. A couple of minutes into looking at it another satellite went through the field.

There's no obvious hint of any colour to the ring, although with the 15mm eyepiece (compared to the 25mm eyepiece) it did seem to be more of a faint "bluish gray" rather than just gray. Also noticed that the nebula seemed to be very elongated in one direction.

At around 23:01 UT I made the following sketch of what the nebula looked like with the 15mm eyepiece (note that, again, I simply marked some of the more obvious stars in the field for reference):

Sketch of M57

M57 with 10mm eyepiece

From: 2005-07-12 23:08 UT
To: 2005-07-12 23:23 UT

Switched to the 10mm eyepiece. The ring structure was now very obvious (again, with averted vision). It seemed much less "blueish". The center doesn't seem as dark as the background sky but it is obviously darker than the edge of the nebula.

Around 23:14 UT started the following rough sketch:

Sketch of M57

By 23:23 UT it was starting to get very misty so started to pack up for this session.


2005-07-09


Location: Billingborough (South Lincolnshire, UK)
From: 2005-07-09 20:45 UT
To: 2005-07-09 21:14 UT
Equipment: Cheap Telescope
Notes:

Test of a very cheap "spotting scope" type telescope against Jupiter. As with other recent observations of Jupiter this was done when the sky was still light due to the fact that Jupiter disappears from view quite early for me now.

There was quite a lot of high-level cloud kicking about so this session didn't last very long. I did want to get the 130M out as it got darker but it wasn't worth it as the cloud cover kept increasing.

Note that this isn't a "serious" observing session — it's more of a quick and dirty equipment test.

Test of telescope against Jupiter

From: 2005-07-09 20:45 UT
To: 2005-07-09 21:14 UT

First some notes about the telescope itself. I purchased it on a whim a couple of weeks earlier (in Woolworths of all places) when I noticed that they were trying to get rid of them for 10.00. They'd been selling them (or trying to sell them) since around Christmas 2004 (they were generally stocked in the "gifts for blokes when you don't know what to get the bloke" section; alarm bells should be ringing right now).

Normally I wouldn't have given such a thing a second glance but I wanted to get a toy telescope for my son and this, at 10.00, seemed as good a thing as any.

It claims a diameter of 50mm and a focal length of 350mm. It comes with a 45 diagonal, three eyepeices (17.5mm, 12mm and 9mm), a 3x barlow and a very small tripod.

With the 'scope mounted on a photographic tripod I had a look at Jupiter first with the 17.5mm eyepeice, then the 12mm and the 9mm. In each case it was obvious that Jupiter was a disc but no hint of any sort of detail, and none of the moons, was visible. To be fair failure to see any moons probably came down to the fact that the sky was still very light.

Next, using the 3x barlow, I went back through the eyepeices. The image was terrible. Very dark and almost impossible to focus. I'd say that the barlow is next to useless (I didn't expect anything else).

What really horrifies me about this is that it is sold as an "Astronomical Telescope" (it even says so on the 'scope itself). Something like this, especially when sold at 25.00, could put someone off the hobby for life. I suspect that it might be ok for some daytime work and will probably be ok for some simple views of the Moon but it isn't much use for anything else.

Still, that's what I purchased it for: a toy 'scope for a child who can use it to look at the Moon now and again.


2005-06-27


Location: Billingborough (South Lincolnshire, UK)
From: 2005-06-27 20:17 UT
To: 2005-06-27 21:20 UT
Equipment: Naked Eye
Meade 10x50 Binoculars
Notes:

Made an attempt to see the conjunction of Mercury and Venus. Also wanted to try and see Saturn in the mix too. While I managed to see Mercury and Venus I never did manage to find Saturn.

All observations were made from the Western edge of the village.

Initial attempt at Venus and Mercury

Time: 2005-06-27 20:17 UT

Got set up on the Western edge of the village. Did an initial scout around the general location of Venus with the naked eye and then with the binoculars but couldn't find anything.

Sun still up.

Got something but not sure what

Time: 2005-06-27 20:23 UT

Sweeping around some more with the binoculars I finally found something. Wasn't sure if I was seeing Venus or Saturn. Was a lone planet so did wonder if it was Saturn but, at the same time, it seemed a little too bright.

Once I'd seen it with the binoculars I could just about find it with the naked eye.

By this point there appeared to be quite a bit of murk on the horizon and whatever I was seeing was just above it. The sky was very read in the general direction of Sunset.

Sun now set from my location.

Mercury and Venus

Time: 2005-06-27 20:27 UT

It was Venus I was looking at. How do I know? Because I could now see Mercury at the 7 O'Clock position to Venus with the binoculars! Let me say that again in big bold letters: I could see Mercury!

This is the first time in my life that I've ever knowingly seen Mercury!

While Venus was now obvious to the naked eye and very easy to find there was no hint of Mercury to the eye.

Venus now very obvious

Time: 2005-06-27 20:37 UT

Venus now a very obvious object to the naked eye but no hint of Mercury (wasn't at all sure if I should or could be able to see it with the naked eye at any point). Noted that there was lots of murk on the horizon now and it was starting to look like I might lose them into it.

Still no sign of Saturn.

Behind me, in the opposite direction from Sunset, I could see the Earth's shadow rising. This is the first time I've knowingly noticed this.

View of Mercury improving

Time: 2005-06-27 20:55 UT

Mercury now very obvious and easy to see in the binoculars. Still no hint of it with the naked eye.

Jupiter

Time: 2005-06-27 21:04 UT

While looking around the sky noticed that Jupiter had popped into view. Had a look at it with the binoculars but no sign of any of the moons yet. The planet itself was obviously a disc.

End of session

Time: 2005-06-27 21:20 UT

Still unable to see Mercury with the naked eye. Both Mercury and Venus starting to get very close to the trees on the horizon.

Could just about make out one of Jupiter's moons with the binoculars.

Decided to call it a day for this session and head back home.


2005-06-18


Location: Billingborough (South Lincolnshire, UK)
From: 2005-06-18 21:25 UT
To: 2005-06-18 23:00 UT
Equipment: Sky-Watcher Explorer 130M
Notes:

Very light sky plus Moon just past first quarter. The reason for venturing out so early was that this was the first clear night I'd had for a while and I'd just acquired 6mm and 15mm eyepieces from Scopes'n'Skies and I wanted to give them a try out as soon as possible.

Jupiter & 6mm eyepiece

Time: 2005-06-18 21:25 UT

Tried the 6mm first. Jupiter showed up quite nicely. Based on first impressions and a quick at-the-'scope comparison I found that the 6mm gave a more pleasing image than the SkyWatcher-supplied 10mm with the supplied 2x barlow. Made a sketch of what I saw with the 6mm -- noted that I could see a faint star quite close to Jupiter (it obviously wasn't a Jovian moon as they were obvious and the star itself was in the wrong location for that).

Tried the 6mm with the 2x barlow. It was hard to get good focus with this combination. While the image was obviously bigger I couldn't see any obvious increase in detail on the planet -- but I was fighting a warm 'scope, a light sky and a lack of collimation (I must get round to this).

Jupiter & 15mm eyepiece

Time: 2005-06-18 22:16 UT

Jupiter looked excellent in the 15mm eyepiece. Although I could only see the two main bands (no hint of the mottling that I've seen on previous nights but see above regarding what I was working against) the image was bright, crisp and clear.

The Moon

Time: 2005-06-18 22:31 UT onwards

Finally got round to having a good look around the Moon for the first time since getting the telescope.

The first thing that really stood out was the top of the rim of the crater Reiner being highlighted even though the bulk of the crater itself was behind the terminator. Quite an amazing sight. I spent some time trying to have a go at sketching this but after a couple of false starts gave up. I need to do some more practice and, more to the point, I should probably plan my observing of the Moon ahead of time and make up a template or two of what I want to look at.

Spent some time taking in the ray systems of Copernicus, Kepler and Tycho.

With the 15mm eyepiece I got an excellent view of Aristarchus, Herodotus and Vallis Schrteri. With the 6mm the view was even better. Vallis Schrteri looked very detailed. I could also clearly see what appeared to be two small craters in what looked like higher ground to the North of Aristarchus. I noted that these craters appeared to be shown on my Moon map but they were not named.

Iridium Flare

Time: 2005-06-18 23:00 UT (approximate)

After packing up, while heading back into the house, noticed a rather bright Iridium flare high up and around due South.


2005-06-06


Location: Billingborough (South Lincolnshire, UK)
From: 2005-06-06 21:35 UT
To: 2005-06-06 23:00 UT (approximate)
Equipment: Sky-Watcher Explorer 130M
Meade 10x50 Binoculars
Naked Eye
Notes:

No moon. The sky was still quite light when I first ventured out. Very clear sky and the atmosphere seemed quite steady.

Jupiter

Time: 2005-06-06 21:35 UT

Viewed Jupiter using the 10mm eyepiece. Image seemed very steady. All four moons were visible, two were very close together (Europa and Io), so much so that at first I thought I was seeing double.

The two main bands were very obvious and appeared to have a very mottled look to them. I also thought I could detect a very faint band towards the South of the planet. Made a sketch of what I saw.

The Summer Triangle

Time: 2005-06-06 22:10 UT

Still not very dark, it was only just obvious that Mizar is a double with the naked eye. The temperature was dropping quite a bit and my breath was misting things up quite a lot (spectecles, eyepieces, etc...).

I guess that the Summer Triangle doesn't get a mention in many logs (who does log constellations and large naked-eye asterisms?) but it seemed worth a note because it's really nice to see this asterism rising before midnight (local time, UT +1) again. Ok, so it does mean that darkness is almost non-existent for me, but it does give that nice feeling that summer is well on its way.

Izar Almost Occulted by Satellite

Time: 2005-06-06 22:20 UT

While scanning the sky with the naked eye I happened to notice a rather bright satellite. As I followed its path it was interesting to watch it almost occult Izar in Botes. I'm not sure that it actually did occult it from my position, it came so close that it was hard to tell.

Update: A poster called stella on the SPA 's forums, having read the above, was kind enough to figure out what I'd seen. Here's the detail:

I have identified the satellite that you saw on June 6.

It was the very large Chinese Long March rocket that was used to launch two satellites (Shiyan 1 and Naxing 1) on 2004 April 18.

At 22:18:50 U.T. it passed very close to Izar as seen from your site near Grantham. It is called 2004-12C and has catalog no. 28222, so you can predict future transits using "Heavens-above".

M13

Time: 2005-06-06 22:47 UT onwards

Decided to have a go at looking at M13. Started out with the binoculars. Located a reasonably fuzzy looking star forming a shallow triangle shape with two other stars in about the right location. Working on the assumption that I'd found M13 I familiarised myself with the field in the binoculars and then moved onto the telescope.

Using the 25mm eyepiece I positioned the telescope on Eta Herculis and then slowly moved the field to the right location. This took a little time to get right, I'm still getting used to working out how "push" directions relate to what movement you see in the eyepiece and, for some reason, I find this even harder when the object you're looking for is near the Zenith.

Finally M13 came into the field. With the 25mm eyepiece the first impression I got was that I was looking at a faint but obvious "splodge", not unlike looking at a rather faint comet. There was no hint of any individual stars, just a large cloud-like structure.

Switched to the 10mm eyepiece. Initially it looked just like it did in the 25mm eyepiece, only bigger. However, after staring at it for some time, and using some averted vision, the image seemed to start to flit from being the cloud-like structure to one of a large structure made from 1,000s of tightly-packed stars. A really incredible sight!


2005-05-19


Location: Billingborough (South Lincolnshire, UK)
From: 2005-05-19 18:39 UT
To: 2005-05-19 19:06 UT
Equipment: Meade 10x50 Binoculars
Naked Eye
Notes:

Moon very close to Jupiter but cloud rolling in so decided to give it an early look while I had the chance.

Moon and Jupiter

Time: 2005-05-19 18:39 UT

Jupiter was about 1 degree from the Moon this evening. At the time of first viewing the sky was still very light. First looked to see if I could see Jupiter with the naked eye but couldn't make it out. Took a look with the 10x50 binoculars and saw it easily. Once I knew where it was I looked again with the naked eye and saw it with no problems.

With the binoculars I couldn't make out Jupiter's moons but the planet did have a very elongated look so I suspect I was seeing two or more moons but was failing to separate them.

Moon and Jupiter — Pictures via Mobile Phone

From: 2005-05-19 19:00 UT
To: 2005-05-19 19:06 UT

With the 10x50 binoculars mounted on a tripod I thought I'd try something silly and attempt to take some pictures via it with the camera in my mobile phone. No surprise that the pictures aren't very good but, at the same time, a couple of them turned out better than I'd expected. Here's one of the best:

Image of Jupiter and the Moon

Around this time the cloud started to really roll in so that was the end of the session.


2005-05-07


Location: Billingborough (South Lincolnshire, UK)
From: 2005-05-07 21:31 UT
To: 2005-05-07 22:39 UT
Equipment: Sky-Watcher Explorer 130M
Notes:

No Moon. Very breezy and very cool night.

Saturn

Time: 2005-05-07 21:31 UT

Worked up from 25mm to 10mm with 2x. With 10mm + 2x Saturn was almost swimming around, the atmosphere seems very unsteady. Could just about make out the shadow on the rings but not much else was visible.

M97

Time: 2005-05-07 22:13 UT

Went star-hopping for M97 using the 25mm eyepiece. After not too much effort managed to find it. Made a rough sketch of its location to relation to surrounding stars so I could double-check with charts later on (that check confirmed that I'd managed to get M97).

With the 25mm eyepiece it was an obvious if faint circular "smudge". No trouble seeing it with direct vision.

Tried next with the 10mm eyepiece. I could only see it with averted vision. There were moments when I wasn't sure I was actually looking at anything at all and then it'd sort of fade into view again. Noted that I could see a very faint star very close to it.

At 22:32 I switched back to the 25mm eyepiece for a wider view and in the following three minutes saw a satellite and then a meteor pass through the field.

Jupiter

Time: 2005-05-07 22:39 UT

With the 25mm eyepiece all four moons were visible. Jupiter itself was almost too bright to look at. Noted that I was getting four "spikes" off the planet (presumably from the legs of the spider holding the secondary mirror).

The two main belts were only just visible, the brightness of the planet appeared to be making it very hard to see any detail at all. As noted in another log: I should probably think about looking into some filters.

Made a sketch of the position of the four main moons.


2005-05-04


Location: Billingborough (South Lincolnshire, UK)
From: 2005-05-04 20:50 UT
To: 2005-05-04 21:50 UT (approximate)
Equipment: Sky-Watcher Explorer 130M
Meade 10x50 Binoculars
Notes:

Seeing seemed reasonable tonight. No moon.

Didn't get a chance to look at Jupiter as it was obscured by the house early on and by the time it cleared the house cloud had started to roll in from the south.

Saturn

Time: 2005-05-04 20:50 UT

With the 10mm eyepiece on the 130M I thought I could see the faint hint of a band on the planet's disk. Not really sure if this really was there or if my eye/mind was playing tricks on me.

As with previous sessions I kept getting the odd hint of the Cassini Division.

At just before 21:00 UT, while looking at Saturn with the 10mm eyepiece and 2x Barlow, had a meteor pass right through the field!

Titan was obvious and, with the 10mm and 2x Barlow, I noticed another faint point quite close to the planet (I'd estimate a couple of Saturn diameters away in the field). Wasn't sure if I was seeing another moon or perhaps a background star. Checked the following day with Starry Night and it seems that what I was seeing was Saturn's moon Rhea.

The International Space Station

Time: 2005-05-04 21:15 UT (approximate)

Naked eye this time (obviously). While having a break from the telescope for a moment saw a very bright satellite moving West to East, easily as bright as Jupiter. Saw it pass within two or three degrees of Jupiter. As it headed East it dimmed and disappeared from view as it past into Earth's shadow. Suspected at the time that what I'd seen was the ISS.

Checked the following day with Starry Night: yes, it was the ISS .

M44

Time: 2005-05-04 21:30 UT onwards

Had another look at M44 with the binoculars and then turned the 130M on it using 25mm eyepiece. Very impressive. More stars that I'd care to count.

Noticed with the binoculars, reasonably close to M44, there's an asterism of stars in a roughly straight line. Got to wondering if it's got a name.

Did some checking on the web the following day and couldn't find any mention of it. I guess it's not an asterism of note. Checking in Starry Night it seems what I was looking at is comprised of the following stars (plus some others):

If anyone reading this recognises this asterism and knows a name for it I'd love to hear about it.


2005-05-02


Location: Billingborough (South Lincolnshire, UK)
From: 2005-05-02 20:30 UT
Equipment: Meade 10x50 Binoculars
Notes:

Having acquired a set of Meade 10x50 binoculars I thought I'd give them a quick try.

Various objects

Time: 2005-05-02 20:30 UT onwards

With binoculars mounted on a photographic tripod I decided to have a quick run around some obvious targets to give them a test.

First looked at Jupiter. All four moons were obvious and easy to see and it was obvious that Jupiter itself was a disk. With something as bright as Jupiter I can see that the binoculars produce a slight "flare" (can't complain, they only cost 14.99).

Turned them on Saturn next. Can't actually see the rings (no surprise there) but it's obvious that I'm not looking at a circular object — the planet is obviously elongated on one axis.

Also managed to get a really nice look at M44 (the Beehive Cluster, AKA Praesepe Cancri, AKA NGC 2632) and Melotte 111.


2005-04-21


Location: Billingborough (South Lincolnshire, UK)
From: 2005-04-21 20:00 UT
To: 2005-04-21 20:30 UT
Equipment: Sky-Watcher Explorer 130M
Notes:

93% waxing Moon.

My first observing session with the motor drive fitted to the EQ2 mount. What a difference it makes! No more need to play catch-up with anything that I'm viewing. It's so nice to view something, look away from the eyepiece to make notes, and then go back to the eyepiece to find that the object is still there.

Jupiter

Time: 2005-04-21 20:00 UT

Sky still reasonably light but needed to try and catch Jupiter before it disappeared behind the house (garden is on the North side of the house).

The two main equatorial bands were easily visible and, as noted in a previous observing log, in moments of very steady seeing they both seem to take on a faint mottled effect.

Callisto, Ganymede, Europa and Io all visible (made sketch of their positions).

Saturn

Time: 2005-04-21 20:30 UT

As with a previous observing session the shadows from the rings on the planet and from the planet on the rings are obvious -- this gives the planet a very 3D effect. Again, in moments of very steady seeing I thought I caught a glimpse of the Cassini Division.

There's a very obvious "smudging" effect that seems to go away if I use the 10mm with the 2x Barlow. I noticed this in a previous observing session too. I don't think it's a problem with the eyepiece or the 'scope. I'm wondering if it's down to Saturn being very bright in the eyepiece and my eye isn't coping too well with it. Might be time to look into a filter or two.


2005-04-18


Location: Billingborough (South Lincolnshire, UK)
From: 2005-04-18 20:30 UT
To: 2005-04-18 21:30 UT (approximate)
Equipment: Sky-Watcher Explorer 130M
Notes:

Clear night but the seeing appeared to be quite bad, there also appeared to be a faint mist above. This wasn't a very successful observing session. I appeared to be having trouble getting anything to come into useful focus (most likely the mist I mention above?).

Simply had a quick run around the more obvious objects (mostly Jupiter and Saturn) and then packed up.


2005-04-16


Location: Billingborough (South Lincolnshire, UK)
From: 2005-04-16 20:20 UT
To: 2005-04-16 21:15 UT
Equipment: Sky-Watcher Explorer 130M
Notes:

After a couple of quick sessions with the 130M in the week or so prior this was my first "proper" observing session with the new scope (as in, I took the time to keep notes).

First quarter moon.

Atmosphere rather unsteady. Dew kept forming on everything and the eyepieces kept misting up whenever I went near them.

Jupiter

Time: 2005-04-16 20:20 UT

Viewed with 10mm eyepiece.

Both of the main bands were visible but rather faint. In moments of steady seeing the bands seemed to take on a faint "mottled" appearance.

Io, Callisto, Europa and Ganymede all visible.

Saturn

Time: 2005-04-16 20:54 UT

Viewed with 10mm eyepiece plus 2x Barlow.

Very obvious seperation between the rings and the planet. Saw a faint hint of the shadow of the rings on the planet and there was an obvious shadow of the planet on the rings. No obvious detail on the planet or in the rings although, in moments of very steady seeing (very rare), I thought I could see a hint of the Cassini Division (although this might have been wishful thinking).

Mizar in Ursa Major

Time: 2005-04-16 21:15 UT

With 10mm eyepiece it was very easy to split Mizar and Zeta Ursae Majoris.


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Dave Pearson <davep@davep.org>
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