Observing Log for 2006-10-26

Observing Logs

Latest Log
Related Links


Location: Billingborough (South Lincolnshire, UK)
From: 2006-10-26 13:30 UT
To: 2006-10-26 13:35 UT
Equipment: Solarscope
Temperature: 15.5C ...
Dew Point: 8.9C ...
Humidity: 67% ...
Wind Speed: 6.8mph ...
Wind Dir: West ...
Pressure: 996.5hPa ...

Very clear afternoon, very breezy too. Took the Solarscope out to do a quick sunspot count.


From: 2006-10-26 13:30 UT
To: 2006-10-26 13:35 UT

No sunspots or other marks were visible on the Sun.

Location: Billingborough (South Lincolnshire, UK)
From: 2006-10-26 18:10 UT
To: 2006-10-26 20:35 UT
Equipment: Naked Eye
7x50 Binoculars
Meade 10x50 Binoculars
Antares 905
Temperature: 11.3C ...
Dew Point: 5.3C ...
Humidity: 67% ...
Wind Speed: 4.4mph ...
Wind Dir: West ...
Pressure: 1001.0hPa ...

Pretty clear night but also very breezy. Seeing appeared to be quite unsteady. Decided to head out and see if I could find comet Swan.

A first look for comet M4 Swan

From: 2006-10-26 18:10 UT
To: 2006-10-26 18:20 UT

I first headed out with the 7x50 binoculars to see if I could even find comet Swan. I managed to locate it with very little trouble. Its appearance was that of a small fuzzy blob, not unlike a globular cluster. In fact, when compared with M13, it appeared quite similar except that the comet seemed somewhat brighter.

Observing comet M4 Swan

From: 2006-10-26 18:25 UT
To: 2006-10-26 19:25 UT

After having located the comet without any problems I went and got the 905 out so I could have a proper look. Starting out with the 32mm eyepiece I found the comet without any problems. Just as it did in the binocular it simply looked a lot like a globular cluster. I could see no sign of a tail.

After a short while, as my eyes became more dark adapted, I found that I could see a hint of a tail — it was quite a bit longer than I would have expected. I then switched to the 10x50 binoculars and was surprised to see that the tail was very obvious. Using the binocular I again compared it with M13 and noted that the comet was quite a bit brighter.

I went back to the 905 and dropped in the 10mm eyepiece. I could see a very bright central spot, not sharp but it was quite distinct. Surrounding it was a fainter coma.

At this point I noted that this is probably the best comet I've seen since I got back into active observing.

After switching back to the 32mm eyepiece I noticed that the tail was even more obvious and that the head of the comet could easily withstand direct vision without any obvious loss of detail. Up to this point I still hadn't been able to spot the comet with the naked eye.

Around 19:03 UT I noticed that some thin cloud was moving in from the west and that it looked like it would interfere with observations. While it wasn't in the way just yet it did put me off doing a sketch I was planning to attempt as it appeared that it was cause problems during the sketching process.

Looking some more via the 32mm eyepiece I estimated that the tail that was visible to me extended about to ⅓ of the field of view of the eyepiece.

Around 19:10 UT was really looking like it was going to become a problem. As well as being annoying because I wanted to try a sketch it was also annoying because I'd been thinking about getting the 130M out to compare the view.

At 19:15 UT the cloud started to get in the way so I decided to have a break to see if it would pass. By 19:23 UT the worst of it seemed to have passed but the sky behind it seemed much more hazy (the tail of the comet wasn't anywhere near as visible in the 905 as it had been earlier). At 19:25 UT I decided to finish with the comet for the evening.

M31, M110 and a satellite

From: 2006-10-26 19:27 UT
To: 2006-10-26 19:38 UT

Because M31 was at a good height for the 905 (unlike the other night when it was too high) I decided to have a quick look. Using the 32mm eyepiece it wasn't quite as impressive as I'd hoped (or as impressive as the other night's view with the 10x50 binoculars). However, I thought I could just about make out M110 when using averted vision. Oddly I couldn't make out M32 at all.

At 19:36 UT a satellite passed right through the field of view (at the time I was using the 25mm eyepiece), only just missing M31 (as it appeared to me, with a bigger aperture the galaxy would look wider and it probably would have appeared to transit it).

Update 2006-10-27:According to stella, a poster on the SPA's BB, what I saw was "99-04C, Globalstar M036, catalog no. 25623. Orbiting at a height of 1413 kilometres".

With the 25mm eyepiece I could still see what I thought was M110. It was only visible with averted vision and seemed quite ghostly but there was little doubt that there was something there. Checking with a chart it appeared to be in the right place.


From: 2006-10-26 19:40 UT
To: 2006-10-26 19:55 UT

Next I decided to have a look for M33. Using the 905 with the 32mm eyepiece I quickly found my way to the correct area of sky and was sure I could see it pretty much straight away. I could see a very ghostly patch that, while it wasn't that distinct from the surrounding sky, was obviously some sort of object.

Looking through the red-dot finder, and checking with my charts (in this case the Sky & Telescope Pocket Sky Atlas), I could see that I was lined up on exactly the right spot so I was very confident that I was seeing M33.

Back at the eyepiece, the more I looked the more I was sure there was something there. Given how indistinct it was it would have been pretty much impossible to actually sketch. I think this is probably a good object to go after with the 130M as the extra aperture would probably be a big help.

I then had a look at the same patch of sky with the 10x50 binoculars and could see the object through them too. There's no doubt that I was seeing M33.


From: 2006-10-26 20:00 UT
To: 2006-10-26 20:17 UT

Decided to go hunting for M76 (the Little Dumbbell Nebula). I star hopped my way to the right location with the 905 and the 32mm eyepiece. I then switched to the 25mm eyepiece and had a sweep around the area for some time without seeing anything obvious.

Finally, after a short while, I noticed a faint, ghostly object in the right location (seems it was the night for this sort of observation). I could only see it with averted vision.

I then switched to the 10mm eyepiece and found that I still needed averted vision but that the object was still visible.

With the object centered in the field of view I then had a check through the red-dot finder and, when compared with my chart, I could see that I was lined up on the right spot in the sky. This would appear to be another good target for the 130M.

Quick look at Albireo

From: 2006-10-26 20:25 UT
To: 2006-10-26 20:35 UT

Before packing up for the night I decided to have a quick look at Albireo through the 905. I started out with the 25mm eyepiece, then moved on to the 10mm eyepiece and then, finally, the 6mm eyepiece.

I noticed that at this magnification the image was quite unsteady. This was probably in part down to the breeze moving the telescope about but there also seemed to be a component of bad seeing involved too.

The colour of both the starts was quite vivid.

Finally, at 20:35 UT, with conditions not being that great and with more cloud heading in I decided to pack up for the night.

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