Copyright © 2009 Larry Phillips
M101, Pinwheel Galaxy in the constellation Ursa Major.
Distance: 31 million light years.
Size: N/A
Camera: SBIG ST-2000XM
Telescope: Astrophysics Starfire 140 EDT F7.5
Mount: Astro-Physics Mach1 GTO with Advanced Telescope Systems portable pier
Images: Exposure was 80 sub images @ 10 minutes each of 20 clear, 22 red, 19 green, and 19 blue for a total exposure time of 13 hours & 20 minutes.
Date: April 2009
Software: Camera, mount, and guider control - CCD Commander & MaximDL, Calibration and stacking - CCDStack, further processing in Photoshop CS4.