Copyright © 2009 Larry Phillips
NGC 1491, Emission nebula in the constellation Perseus.
Distance: 11,000 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 37 sub images @ 10 minutes each of 12 Red, 12 Green, and 13 Blue for a total exposure time of 6 hours & 10 minutes.
Date: October 2008
Software: Camera, mount, and guider control - CCD Commander & MaximDL, Calibration and stacking - CCDStack, further processing in Photoshop CS4.