Sunday, June 15, 2008

A Few Images From Cherry Springs Star Party

Had my first somewhat successful imaging at a true dark site. Still had some problems as I don't get to image as often as I'd like. After I got the bugs worked out I was actually able to get a few good hours of images.
My first attempt was the snake nebula. Probably not a good first choice because it is not in my G-11 goto and a search in The Sky will not find it. Took me a while to locate it. After I did, I was able to capture a couple hours worth of 30 min subs. This image is an average of 4 30 min subs. No darks or flats were subtracted. I still have some work to do but think it has come out quite well so far. I really wanted to get some color as well but with all the amateur problems I run into color was out of the question.
On another clear night, I decided to shoot the iris nebula. Was able to capture 3 hours on this one and it definitely needed. I was really not happy with this one until I averaged the final 30 min sub. I like to average the subs throughout an imaging session to see how things are going. Throughout the whole session I just was not satisfied because with each new sub, the graininess in the faint areas was just not going away. I averaged the final sub and viola. This one is really in early processing. I need to work on the central area as it was blown out in this quick processing job. Once again, no dark frames or flats have been subtracted.

Lastly, I decided to do some wield field stuff. Mounted my Canon Rebel XTI on my G-11 and shot 10 minute frames from southern horizon to northern horizon for a total of 8 x 10 minute frames. I wish I could put a 50% reduction on here but the site just will not allow such a large file. Click on the image to see all that it would allow me to upload. You can still see a few gems. My favorite is the North American nebula toward image center, almost too small to see in this small image.