Wednesday, September 24, 2008

Deneb & Andromeda

The Clear Sky Clock warned me of a relatively clear night last night and sure enough at around 8 PM, looking upward the seeing seemed like it could be decent. Light pollution was still a major problem but I decided to set up the Astrotrac and try anyway. It has been several months since I'd set it up and have missed the opportunity to image summertime DSOs. In particular I wanted to photograph M31 (Andromeda Galaxy), however it was still too low in the horizon and so was blocked by the house. I decided instead to kill some time by imaging the region near Deneb. The nebulosity (including the North America nebula and the Pelican nebula) near the star Deneb is one of the most impressive regions in Cygnus. My timer remote was being uncooperative so this image is the result of stacking only 2 images, both 2 minute exposures. Overall, I'm pretty happy with the result, but I'll definitely be trying again as soon as I can with a lot more images in the stack.

I also managed to image M31 before heading to bed. This was the result of stacking 5 images, each 2 minutes long.

Technical Specs: Canon Rebel XSI (full spectrum) /w Hutech LPS filter, 200mm f/2.8 II, f/4, 2min.

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