M16 Eagle Nebula Redo
Copyright © 2012
M16 Eagle Nebula, an emission nebula in the constellation Serpens
Also called NGC 6611
The short 2 minute exposures were taken instead of the usual 5 to 15 minutes in order to minimize bright star blooming on the raw images.
This is a redo of a previous image taken in 2008 using an SBIG ST-2000XM CCD.
Distance: 7000 light years
Size: 70 X 55 light years for entire nebula
Camera: SBIG ST-10XME
Telescope: Astrophysics Starfire 140 EDT F7.5
Mount: Astro-Physics Mach1 GTO with Advanced Telescope Systems portable pier
Images: 155 subexposures of 2 minutes each with 61 of red, 47 of green, and 47 of blue for a total time of 5 hours & 10 minutes.
Date: June 2012
Software: Camera, mount, and guider control - CCD Commander & MaximDL; calibration, stacking, & RGB creation in CCDStack, and further processing in Photoshop CS6.