Tuesday, February 21, 2012

Lagoon and Trifid 2012-02-22

Due to some unforeseen circumstances, I was wide awake by 4 in the morning. I decided to just try and image something. A quick setup is all I need: a camera on an equatorial mount. After doing a rough polar alignment, I started my CHDK powered Canon Powershot SX120 and began imaging. After shooting 12 images, I ended my imaging session. When I tried to process my images, I have to discard 4 of them due to obvious star trailing. Here is the result:

This image is a stack of 8 25seconds exposure at ISO1600. At the right is the Lagoon nebula or Messier's 8th object. The smaller nebulous object to the left is the Trifid nebula (M20) and just below it is the open cluster M21.

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