Copyright © 2008 Larry Phillips

Home

NGC 2903 in the constellation Leo

This is a redo of the previous NGC 2903 taken earlier. I added 105 minutes of additional luminance using the new AP 140 scope.

Spiral galaxy

Distance: 20.5 million light years.
Size: Not available


Camera: SBIG ST-2000XM
Telescope: Astrophysics Starfire 130 EDT F8 with .75 telecompressor and Astro-Physics
                Starfire 140 EDT F7.5
Mount: Losmandy G11 with Gemini Control with Advanced Telescope Systems
                portable pier
Images: 28 luminance, 12 red, 12 blue, 12 green @ 5 minutes each for a total
                exposure time of 340 minutes.
Date: January 11 and February 11, 2008
Software: Camera and guider control - MaximDL, Calibration and stacking, Creation of
                color image - CCDStack, further processing in Photoshop CS2.