Recently, I purchased a new monitor (a Dell 22″ LCD) and needed a good background image for it. My M31 data from 2011 had some issues, so I re-worked it a little and rotated it to a landscape orientation instead of the portrait orientation that I had used before. Now, it makes a great background image for that new monitor!
Latest Entries »
December’s weather has been horrible. For the last 10 days it has been wet and cold and too cloudy to shoot any images of any comets. Finally, it cleared enough to get out. Unfortunately, while it was clear initially, clouds moved in before I could get a good amount of sub-images of Comet Lovejoy. I did get 21 of them, so at least I did not scratch.
Below is the star streaks version of the data, with a few clouds for good measure. LoL.
Comet Lovejoy composite image taken with a Canon 200mm telephoto lens. I shot 40×30 sec sub-images at ISO 3200 and stacked them. The first image of the set was used as the background base image. I then took the stack of subs and combined them with the base to show the tail better. To me, this shows how the comet sort of looked in binoculars as it was rising from behind the trees.
I also did a star-streaks stack that shows the extent of the tail better than the image above. I did very little post-processing on it, since that just took away from the raw feel of the image:
With all the hype about Comet ISON going on over the past 2 days, we still have a very nice comet to look at that is putting on just as good a show – Comet Lovejoy. Here’s how it looked the morning after Thanksgiving Day with a 200mm F/2.8 telephoto lens mounted on a simple equatorial tracking mount. I used 2 light pollution filters for this since I had to shoot towards a very bright LP dome from a metropolitan area to my northeast. It was a test and it seems to have worked beautifully. Next time, I’ll try this with the camera on my bigger mount and track the comet with much longer exposures.
Here’s about 10.75 minutes worth of sub-images stacked to show the extent of Comet ISON’s tail. Mount troubles and twilight limited my exposures, but at least I didn’t scratch. Probably the last image pre-perihelion, since the weather will not be good for imaging again until next week and ISON will be too low to see by that time.