Observing Logs

Observing Logs

Latest Log
Related Links

All observing logs tagged with M81


Location: Woodland Waters (South Lincolnshire, UK)
From: 2008-01-05 20:00 UT
To: 2008-01-05 23:45 UT
Equipment: Antares 905
Lomo Lubitel 166B
Meade 10x50 Binoculars
Naked Eye

Joined John Turner at Woodland Waters for an observing session. Dark and clear skies when we arrived. Also rather cold and windy.

I brought my Antares 905 and John brought his Evostar 150.


From: 2008-01-05 20:30 UT
To: 2008-01-05 21:10 UT

After a bit of time to get things set up we turned our telescopes on Mars. I first had a view, unfiltered, via John's Evostar. The image had quite a lot of fringing and was somewhat unsteady (probably partly due to the state of the atmosphere, but also down to the wind buffeting the 'scope). No detail could be seen. John then added a pale blue filter (#82A) and that improved things somewhat. While the image still seemed too bright it was then possible to see a hint of detail on the surface. At least two major darker areas were visible.

I then set up the 905 with the 6mm eyepiece and the 2x barlow. The planet presented a good sized disc although no surface detail was visible. The wind didn't help things either so periods of a steady image were few and far between. The view itself seemed pretty similar to previous views I've had via the 130M.

It seems that it's a struggle to get any detail out of Mars using either of my 'scopes.

I then tried the #21 Orange filter but that didn't make any noticeable difference.

I stuck with the planet a little more, waiting for steady moments, but never managed to get any hints of any detail via the 905.

Started a Star Trail

Time: 2008-01-05 21:15 UT

I set the Lomo Lubitel 166B up on a tripod and started a star trail.

This was nothing more than an experiment. The camera was loaded with Ilford FP4+ 125 (120 roll film), the aperture was set to f8 (the Lubitel is supposed to give sharper images when stopped down a little). While probably not the best setup (stopped down somewhat, slowish film) I was curious to see what would come out and I also wanted to finish the film (it already had 5 shots on it taken elsewhere).

The camera was roughly pointed at part of Ursa Major rising over some trees.


From: 2008-01-05 21:20 UT
To: 2008-01-05 21:42 UT

Had a look at M42 using the 905 and the 32mm eyepiece. Noted that it was rather faint (almost to the point of not being visible) with direct vision but was easy enough to make out with averted vision. If the stars in the view were anything to go by the view was still very unsteady.

I then added the Neodymium filter and it appeared to make quite a difference. Probably the greatest difference I've seen it make so far. The background sky appeared darker and the nebula appeared to stand up to direct view a little more. With averted vision the view was obviously much better. Some actual "detail" was visible too.

Stopped the Star Trail

Time: 2008-01-05 21:43 UT

Stopped the star trail I'd started a little earlier. Here is the resulting image:

Ursa Major Star Trail

Started a Star Trail

Time: 2008-01-05 21:49 UT

I started a second star trail using the Lomo Lubitel 166B. Same as before: Ilford FP4+ 125 at f8.

The camera was roughly pointed at Leo rising from behind some trees.


From: 2008-01-05 21:50 UT
To: 2008-01-05 22:10 UT

Took a look at Saturn with the 905 and 6mm eyepiece. Very soft/musy view. No detail visible at all. However, Saturn was still quite low down so that wouldn't have helped.

Noted that, especially when compared to my last view of it, the rings had closed up quite a bit.

The most interesting thing about the view was the way that the rings didn't appear to be "attached" to the planet. In other words, the rings appeared to be two objects, one either side of the planet, with a distinct gap between them and the planet. The view reminded me very much of some of the very early drawings of the planet that I've seen in books.

I added the 2x barlow but the view was very mushy to the point of being no good. That said, the "detached ring effect" was still there.

Possibly Comet Holmes

From: 2008-01-05 22:13 UT
To: 2008-01-05 22:24 UT

While stood looking at the Double Cluster with the naked eye I spotted something close by, near Algol, that appeared to be about the same size and of a similar brightness to it. Initially I was confused about what it was. I quickly grabbed my monocular and had a look and could see that it was a faint but noticeable misty patch. Given that I wasn't aware of any object in that location, and given that I couldn't find any such thing on my charts (not that I expected to — I'd have known about such an object if it were a "fixed" item in the sky), I suspected that it was comet Holmes.

This came as quite a surprise because I thought it had long faded from naked-eye view.

Stopped a Star Trail

Time: 2008-01-05 22:25 UT

Stopped the star trail I'd started a little earlier. Here is the resulting image:

Leo Star Trail

Back to Comet Holmes

From: 2008-01-05 22:27 UT
To: 2008-01-05 22:40 UT

Went back to looking at what I suspected was comet Holmes. This time I used the 905 and the 32mm eyepiece. There was something there, a faint brightening of the sky, but nothing distinct. I also had a look via John's Evostar with a 42mm eyepiece and the same thing could be seen: slightly indistinct brightening of the sky.

I then grabbed the 10x50 binoculars and had a look with them. Using averted vision the object looked very much like a comet so it seemed obvious that I really was looking at comet Holmes.

Since this observing session I've checked with a couple of charts that show Holme's position for that evening and it turns out that my suspicion was correct. I'm kind of surprised by this as I really didn't think that the comet would be a naked eye object any more.

Started a Star Trail

Time: 2008-01-05 22:42 UT

I started a third star trail using the Lomo Lubitel 166B. Same as before: Ilford FP4+ 125 at f8.

The camera was roughly pointed in the general direction of Cassiopeia.

M81 and M82

From: 2008-01-05 22:44 UT
To: 2008-01-05 22:55 UT

Had a brief view of M81 and M82 through John's Evostar via the 42mm eyepiece. Very impressive sight.

M81 looked very much like a (more or less) face-on galaxy. I couldn't make out any hint of any spiral structure, it looked more like an oval shaped misty patch with a bright and distinct concentration in the middle.

M82 was the most impressive of the two. It looked like a thin line and I could also see a hint of the dust lanes that it contains.

Back on Saturn

From: 2008-01-05 23:00 UT
To: 2008-01-05 23:13 UT

Now that it was higher in the sky I returned to Saturn with the 905 and 6mm eyepiece (with and without the 2x barlow). Still no detail of any kind visible although the image wasn't quite so soft this time. In both cases (with and without the barlow) I was still seeing the "detached ring effect".

Stopped a Star Trail

Time: 2008-01-05 23:14 UT

Stopped the star trail I'd started a little earlier. Here is the resulting image:

Cassiopeia Star Trail

Started a Star Trail

Time: 2008-01-05 23:18 UT

I started a fourth star trail using the Lomo Lubitel 166B. Same as before: Ilford FP4+ 125 at f8.

The camera was roughly pointed in the general direction of Orion.

Stopped a Star Trail

Time: 2008-01-05 23:45 UT

Stopped the star trail I'd started a little earlier. Here is the resulting image:

Orion Star Trail

End of Session

Time: 2008-01-05 23:46 UT

During the previous star trail exposure we started to pack up and we finally called an end to the session at 23:46 UT.


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.

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