Abell 39 Planetary Nebula
Copyright © 2012
Abell 39 planetary nebula in the constellation Hercules
Distance: 6800 light years
Size: 2.5 light year radius
Camera: SBIG ST-10XME
Telescope: Astrophysics Starfire 140 EDT F7.5
Mount: Astro-Physics Mach1 GTO with Advanced Telescope Systems portable pier
Images: 51 subexposures of 5 minutes each with 15 of red, 18 of green, and 18 of blue for a total of 4 hours & 15 minutes.
Date: March 2012
Software: Camera, mount, and guider control - CCD Commander & MaximDL; calibration, stacking, & RGB creation in CCDStack, and further processing in Photoshop CS5.