Observing Logs

Observing Logs

Latest Log
Related Links

All observing logs tagged with Taurus


Location: Billingborough (South Lincolnshire, UK)
From: 2006-12-16 12:20 UT
To: 2006-12-16 12:25 UT
Equipment: Solarscope
Naked Eye
Temperature: 6.9C ...
Dew Point: 3.7C ...
Humidity: 80% ...
Wind Speed: 0.8mph ...
Wind Dir: West ...
Pressure: 1017.9hPa ...

Very clear day. Took the Solarscope out to do a quick sunspot count.


From: 2006-12-16 12:20 UT
To: 2006-12-16 12:25 UT

Active area 930 was still visible although somewhat foreshortened due to getting closer to the limb of the Sun. Today I could only make out a single large spot. The penumbra around it was just about visible.

This was the first observation of 930 where I was unable to see it with the naked eye (via eclipse shades).

Location: Woodland Waters (South Lincolnshire, UK)
From: 2006-12-16 19:00 UT
To: 2006-12-16 23:50 UT
Equipment: Antares 905
Naked Eye

Very clear and cold night. Arranged to meet up with John Turner at Woodland Waters to try it out as an observing location. I took along my Antares 905 and John brought his Sky-Watcher Explorer 130M mounted on an EQ5 mount.

A Leisurely View of Various Objects

From: 2006-12-16 19:00 UT
To: 2006-12-16 23:50 UT

We got to the observing location at around 19:00 UT to find reasonable clear skies with no sign of any cloud anywhere. Some time was spent finding a location and setting up and then the rest of the evening was spent chatting and having a leisurely view of random sights in the sky.

I started with a quick view of M42. Orion was still quite low at the time and the view wasn't very impressive. With the 32mm eyepiece and the 905 I could only just make out the glow of the nebula with averted vision. I decided to come back to it when Orion was higher.

Next I had a quick look at M45. I noticed that the seeing seemed very steady.

I then went on to have a look at M1. This was the first time I'd had a look at it in over a year and it was also the first time I'd observed it with the 905. The view was more or less the same as I remember from the last time — an indistinct patch of glowing sky that was best noticed with averted vision.

At 20:30 UT I saw a very bright and fast meteor travel north to south just below Taurus.

I then had a quick look at M36, M37 and M38 via the 905. All looked very clear and very steady with many individual stars visible. It was quite a different view from that that I've previously had in a binocular. With a binocular I'd previously noted that the clusters had the appearance of globular clusters but via the 905 it was very obvious that I was looking at open clusters.

At around 21:15 UT I returned to M42. By now Orion was higher and the view was much better. With the 905 and the 32mm eyepiece the nebula easily withstood direct vision. Quite a bit of detail was visible, it had quite a mottled appearance. I then dropped the 6mm eyepiece in the 905 and could easily pick out the trapezium.

During the next hour I kept going back to M42 and noted that the view kept improving as it got higher in the sky. Had it not been for the dampness (quite a bit of dew was forming) I'd probably have had a go at producing a sketch.

At around 22:23 UT Saturn was starting to rise above some trees near us. I had a quick look with the 905 and the 6mm eyepiece. The view wasn't that good due to it still being quite low, being viewed amongst the top branches of the trees and also due to some thin cloud started to get in the way. I could, however, easily make out the rings and a hint of the shadow of the rings. There was no sign of the Cassini Division. Titan was easily visible too.

Around 23:19 UT John suggested that I try and locate M81 and M82 in the 905. Using the 32mm eyepiece I pointed the 'scope at about the right location (working off 24 Ursae Majoris) and found them right away. The sight was far more impressive than I thought it would be. M81 had an elliptical appearance, as if I was seeing a galaxy partially tilted towards me, whereas M82 looked more like it was edge on and appeared to have a kink in it. The following evening I did some checking in a couple of books and the impression I had of them appears to perfectly fit the images.

At around 23:50 UT we started to pack up the equipment. All in all I'd say it was one of the best sessions I've had yet. While I didn't have any kind of observing plan, and while my notes weren't as detailed as they normally are when I observe alone, it was nice to share views and impressions with another observer. It was also nice to observe a largely unobstructed sky.


Location: Billingborough (South Lincolnshire, UK)
From: 2006-01-11 16:51 UT
To: 2006-01-11 16:57 UT
Equipment: Naked Eye
Temperature: 5.5C ...
Dew Point: 1.5C ...
Humidity: 75% ...
Wind Speed: 2mph ...
Wind Dir: West ...
Pressure: 1021.8hPa ...

Mark Smith alerted me to a pass of the ISS that was about to happen so I ventured outside to watch it go over.

International Space Station

From: 2006-01-11 16:51 UT
To: 2006-01-11 16:57 UT

The sky was still light, although the Sun had set. I managed to pick out the ISS when it was something like 20 above the horizon (perhaps a little more). At its maximum altitude (around 69) it was very bright, brighter than I've ever seen it before. I also watched it pass about way between Mars and M45.

Location: Billingborough (South Lincolnshire, UK)
From: 2006-01-11 21:22 UT
To: 2006-01-11 23:00 UT
Equipment: Naked Eye
Sky-Watcher Explorer 130M
Meade 10x50 Binoculars
Temperature: 2.0C ...
Dew Point: -0.1C ...
Humidity: 86% ...
Wind Speed: Calm ...
Pressure: 1024.8hPa ...

First clear night this year and the first clear night I've had free to observe in a month. The Moon was quite high in the sky, phase was waxing gibbous (about 89% of full). The main aim for this session was to observe Saturn (this would be the first telescope observation of the planet since 2005-05-07.


From: 2006-01-11 21:22 UT
To: 2006-01-11 22:10 UT

Got Saturn in the field of view of the 130M, using the 25mm eyepiece with no trouble. Even at such low power the rings were quite obvious. I could also easily see Titan and Rhea. The image was a little unsteady (with some blurring and false colour) but, at this point, the 'scope hadn't really had much time to cool down so I wasn't expecting too much.

Switched to the 6mm. The image wasn't very sharp and was mostly unsteady. However, in steady moments, I was sure I was getting a hint of the Cassini Division.

Decided to play with some of the filters and see what effect they had. Started with the #15 Yellow/Orange filter. With it I thought I could see a good hint of a couple of dark bands on the surface of the planet.

I next tried the #21 Orange and then the #56 Green filters. In both cases I didn't notice any obvious improvement over the view without any sort of filter.

Finally I tried the #80A Medium Blue filter. When using this I'm sure I got a better hint of the Cassini Division than I'd had with any other view.

As a quick test I tried the 6mm eyepiece with the 2x barlow. The view was terrible. This was to be expected as this provides slightly more magnification than the 130M can handle.

I next tried a view with the 10mm eyepiece and the 2x barlow. The view was reasonably good but didn't really seem to show any more detail than any other view I'd had.

A good view of the Cassini Division still eludes me.

Saturn and The Beehive

From: 2006-01-11 22:28 UT
To: 2006-01-11 22:35 UT
Temperature: 1.6C ...
Dew Point: -0.4C ...
Humidity: 87% ...
Wind Speed: 3.5mph ...
Wind Dir: West South West ...

Used the Meade 10x50 binocular to view Saturn and M44 in the same field of view. Looked fantastic! Having spent the best part of the previous hour observing Saturn through the 130M (where the planet was a significant feature in the field of view), this view, with M44 in the field, seemed to make Saturn look very small.

Also noticed that Asellus Australis was nicely framed in the field too. All in all an excellent sight and right in the middle of Cancer.

Moon and Elnath

Time: 2006-01-11 22:36 UT

While looking at the Moon with the naked eye I noticed a bright star close by (about 1 or so away). Against the Moon's brightness it was hard to make out but it was simple to see with the binocular. A quick checked showed that the star in question was Elnath in Taurus

One last view of Saturn

From: 2006-01-11 22:54 UT
To: 2006-01-11 23:00 UT

Decided to have one last look at Saturn before packing up. Used the 6mm eyepiece on the 130M. Had some very steady moments in which I thought I could see a very good hint of the Cassini Division. Also, in this view, the rings stood out really well against the planet.

Also experienced a couple of moments of really bad seeing. This little observation was a really nice example of the "watch and wait" approach to viewing planets. One moment the view was awful, the next it was the best I'd seen it all evening.


Location: Billingborough (South Lincolnshire, UK)
From: 2005-10-09 20:26 UT
To: 2005-10-09 22:40 UT
Equipment: Sky-Watcher Explorer 130M
Temperature: 8.8C
Humidity: 78%

Reasonably clear night with some mist hanging around — mostly noticeable as I looked towards the horizon. The sky wasn't as dark as it can be but I could still clearly see the Milky Way.

The main aim for this session was to have a look at Mars. At the start of the session it had already cleared the roofs to the East of me and it was almost clear of the worst of the murk and mist.

I set the telescope up and opened it for cooling at the very start of the session and then spent some time preparing and letting my eyes dark adapt a little.


From: 2005-10-09 20:46 UT
To: 2005-10-09 22:05 UT

First located Mars with the 25mm eyepiece. Even with such a low power (x36 on the 130M) I could easily tell that I was looking at a disk that seemed to be displaying a bit of a phase. The image was bright and displayed spikes corresponding to the arms of the spider that hold the secondary mirror in the 'scope. The image seemed very steady.

Switched to the 6mm eyepiece. The image looked huge and rather unsteady. Quite a bit of false colour was visible around the edge of the planet. The image didn't look very crisp and was rather unsteady. Without any sort of filter in place the surface still seemed very bright and rather washed out. However, there did seem to be an obvious variation in the colour of the disk hinting at some sort of surface feature.

At first glance the feature had the appearance of a short, thick line across the face of the planet.

Added the #21 Orange filter to the 6mm eyepiece. The image now seemed a lot sharper and the false colour was gone. However, there did appear to be an occasional fringe to the edge of the planet. The "line" that I mention above now seemed a bit more obvious and, with the Orange filter, seemed to take on a more "arrowhead" appearance.

The sight of the marking seemed to come and go and was rather fleeting. One moment it seemed very obvious to the eye and then the next it was rather indistinct. While the shape didn't appear to change as the view came and went I noted that it would have been very difficult to sketch.

Next, I combined the #21 Orange filter with the #15 Yellow/Orange filter but I was unable to detect any difference in the image.

After that I tried the #56 Green filter with the 6mm eyepiece. No real detail of any sort was obvious with this combination. I'd have said that the image seemed about the same as with the unfiltered 6mm eyepiece — only greener.

Around this time (21:25 UT) the house below where Mars was positioned lit a fire and there was a fair bit of smoke coming from the chimney. None of the smoke appeared to be getting in the way of my view of the planet but I imagine that the warm air that was rising from the fire interfered with subsequent views.

Now switched to the 6mm with just the ND13 filter to see what effect it would have. The view didn't seem any different from the view without a filter expect that it was dimmer (which was pretty much what I expected to see).

Despite not being able to tease any extra obvious detail out of the image the thing that was most impressing me by this time was the difference in the size of the image of Mars when compared to the first time I looked at it in the 130M. Even though I knew this was going to happen (that the apparent diameter would increase over time) the difference was still quite striking.

Next I tried with the 6mm and the #11 Yellow/Green filter. For a few brief moments, when the image seemed very steady, I was sure I could see slightly more detail than I had earlier. This was, however, a very brief view. I wasn't sure if this was down to the choice of filter, a lucky moment of very steady seeing or simply that Mars was now higher in the sky than when I'd started the observation session. Could simply have been a combination of all of the above.

Finally I decided to try with the 10mm eyepiece and the 2x barlow plus the #21 Orange filter. This seemed to be a good combination. Now I could see what appeared to be two darker areas on the surface. One seemed to be a vaguely rounded but linear feature (sort of an elongated oval) and the other appeared circular and smaller. The contrast wasn't great and, as with other filter and eyepiece combinations, the view seemed to come and go but there was no doubt that I was seeing slightly more than I was before.

What was most surprising about this combination was that, in the past, I've had focus trouble with the barlow and had more or less given up on using it. However, this time, the image seemed to come to a pretty crisp focus.

Double Cluster

From: 2005-10-09 22:11 UT
To: 2005-10-09 22:20 UT

Given that it was now very well positioned for me to view with the 'scope I pointed the 130M at the Double Cluster (AKA Caldwell 14 or NGC 869 and NGC 884) in Perseus. At first glance it looked like a rather sparse grouping of stars with two obvious areas of concentration. However, as my eyes adjusted both areas of concentration seemed to become richer and richer. I noted that both of the main concentrations fitted in the field of view of the 25mm eyepiece.


From: 2005-10-09 22:26 UT
To: 2005-10-09 22:40 UT
Temperature: 7.9C
Humidity: 79%

Although it was still very low, just above the houses to the East of me and still in the thin mist, I couldn't resist trying to have a look for M1 (AKA The Crab Nebula or NGC 1952) in Taurus.

Using the 25mm eyepiece on the 130M I found it with little trouble. It was rather hard to make out (most probably due to the conditions under which I was trying to observe it). It had no real obvious shape to it, all I could see was an indistinct but visible "ghostly presence". Given that it was (just) visible in such bad conditions I image that it will make for a good target when it is higher in the sky.

By 22:40 UT I was starting to feel the cold and was also starting to feel tired so decided to call an end to the session.


Location: Billingborough (South Lincolnshire, UK)
From: 2005-10-04 19:26 UT
To: 2005-10-04 21:15 UT
Equipment: Naked Eye
Meade 10x50 Binoculars
Tento 10x50 Binoculars

A rather cold and damp night. Some mist about, especially obvious towards the horizon. Most of the sky doesn't look all that dark although, above me, I can see the Milky Way with little trouble.

Decided to have a simple evening of binoculars and chair, just sweeping about to see what I can find. No real point or target for the session.

Kemble's Cascade

Time: 2005-10-04 19:50 UT

At around 19:50 UT I stumbled upon Kemble's Cascade in Camelopardalis. Fantastic little asterism.

Although I've read about it a number of times before this was the first time I'd seen it for myself and I was quite surprised at just how straight the line of stars appeared to be. I was very happy to have finally seen it.

At 19:58 UT, while looking with the binocular, I saw a very faint satellite pass right through the cascade, about two thirds of the way "down" the line.

Mars and M45

Time: 2005-10-04 20:17 UT

Noticed that Mars and M45 had now risen above the roofs to the east of me. Looking at them both with the binocular I estimated that they were no more (and perhaps slightly less) than two binocular field widths apart.

Mars, in the binocular, was interesting in that it was obviously a non-stellar object. I'm not sure if this was just down to brightness/contrast or if I actually was seeing a hint of a disc. The colour in the binocular was a rather vivid orange.

By 20:27 UT there seemed to be more mist forming. It was getting increasingly hard to see M45 with the naked eye. The sky above me, however, seemed as clear as ever — perhaps a little darker and clearer than it was at the start of the session.

Mist and smoke

Time: 2005-10-04 20:27 UT

By 20:27 UT there seemed to be more mist forming. It was getting increasingly hard to see M45 with the naked eye. The sky above me, however, seemed as clear as ever — perhaps a little darker and clearer than it was at the start of the session.

Also, around this time, I noticed my first hazard of winter observing: smoke from people's fires. Given that nights are getting colder now and given that I'm surrounded on three sides by people who have and use open fireplaces I wonder how much of an obstacle this will be?

NGC 1502 and testing dark adaption

Time: 2005-10-04 20:56 UT

After checking a couple of books, a couple of charts, and some pages on the net I realised that, earlier, when I'd been looking at Kemble's Cascade, I'd also been looking at NGC 1502.

At this point I realised that the cascade is also an interesting test of how dark adapted I am. I'd popped indoors to check the books, charts and the net and, obviously, I'd exposed myself to normal lighting and so had ruined the dark adaption that I'd built up earlier. When I came back outside and went to look at the cascade again I could hardly make it out — initially all I could see were the brighter stars that are around it.

As the minutes passed the cascade again became more and more visible in the binocular. I think this might serve as a useful gauge of how dark adapted I am (and how transparent my skies are) during the course of winter.

The Hyades

From: 2005-10-04 21:11 UT
To: 2005-10-04 21:15 UT

At 21:11 UT I noticed that the Hyades (AKA Melotte 25, Caldwell 41) had cleared the roofs to the East of me. While they were hard to make out with the naked eye due to the rising mist I could clearly see them with the binocular.

In the binocular Aldebaran was interesting to watch as it was twinkling between red and green. I took from this that the mist really was making a mess of things and that the air wasn't very steady at all. Earlier I had been thinking about getting the 130M out to have a look at Mars but at the time the rising mist put me off. If the view I had of Aldebaran in the binocular was anything to go by this was probably a good decision.

By 21:15 UT the cold and the damp was starting to get a little too much so I decided to call an end to the session. I wasn't really that well dressed for the conditions — I'm going to have to dig out some of my winter gear for future sessions.


Location: Billingborough (South Lincolnshire, UK)
From: 2005-09-13 10:20 UT
To: 2005-09-13 10:31 UT
Equipment: Solarscope
Naked Eye

Another look at sunspot 798 with the naked eye and with the Solarscope. Sky wasn't too bad again today — just a little hazy.

Sunspot 798

From: 2005-09-13 10:20 UT
To: 2005-09-13 10:31 UT

First looked for sunspot 798 with naked eye and eclipse shades. It was very easy to see as a rather large dark spot.

In the Solarscope it was obvious that the shape of the spot had changed a lot from yesterday. Although the following sketch gives the impression that it's smaller than yesterday it actually seemed to cover slightly more area than I remember from the previous observation.

Made the following sketch:

Sketch of Sunspot 798

Location: Billingborough (South Lincolnshire, UK)
From: 2005-09-13 21:55 UT
To: 2005-09-13 23:00 UT
Equipment: Sky-Watcher Explorer 130M

Given that the sky was reasonably clear and that the forecast for the next few days didn't look too good I decided to have a quick session looking at Mars.

Conditions were slightly warm and breezy with the Moon just past 1st .


From: 2005-09-13 21:55 UT
To: 2005-09-13 22:49 UT

Mars was still quite low. There was also a hint of haze in the air which seemed to dim it slightly. After first locating the planet with the 25mm eyepiece I switched to the 10mm eyepiece. The image was quite washed out and was dancing around quite a bit. Initially about all I could make out was that there was a visible phase.

The breeze calmed down for a moment so I switched to the 10mm with 2x Barlow. As normal I struggled to get useful focus with the Barlow and also noticed that there was some significant false colour around the image of Mars.

Switched to the 6mm (with no Barlow) and the image was much crisper. Mars appeared very bright, even to the point that I was getting four very obvious spikes off it. In steady moments there was a hint of surface markings visible. As with a few nights ago, these appeared as vague differences in colour.

Added the #21 Orange filter to the 6mm eyepiece. This reduced the glare of the image, the surface looking less washed-out. The hint of markings seemed to improve although they didn't improve to the point that I'd have been able to draw a reliable sketch. They were there, visible but also somewhat indistinct. The fact that the image wasn't terribly steady most of the time adding to the problems.

Next gave the #80A Medium Blue filter a go with the 6mm eyepiece. I don't know why but I was initially surprised to see that this made Mars look white, not blue. The markings mentioned above were still visible and, this time, appeared as darker gray areas.

Decided to experiment a little more by combining the #21 and #80A filters. The image looked more or less the same as it does with the #21 filter on its own although I'd be tempted to say that the darker areas appeared a little easier to notice — although still somewhat indistinct.

Also tried the #56 Green filter with the 6mm eyepiece. Other than making Mars look somewhat green this didn't seem to make an awful lot of difference to the image.


From: 2005-09-13 22:57 UT
To: 2005-09-13 23:00 UT

Because it was close to Mars and is also an easy target I decided to have a quick look at M45 — The Pleiades. Had a look with the 25mm eyepiece. Quite a stunning sight through the 'scope. The main pattern of stars more or less filled the field of view.

By around 23:00 UT the breeze was picking up quite a bit and the sky was becoming more washed-out due to the Moon so decided to call an end to the session.

Page last modified: 2013-04-09 09:19:19 UT
Dave Pearson <davep@davep.org>
Valid XHTML 1.1 Valid CSS