M97, The Owl Nebula in Ursa Major

 

 

 

Exposure Data: 4/17/2002.  LRGB: 24x5m, 8x5m, 8x5m, 8x8m. -10C, 1.0 arc-sec./pixel
 
Processing: Acquired via script with Maxim, reduced, combined, aligned in Mira, L 5x CCDSharp, RGB combine in Maxim, LLRGB, curves, levels, unsharp mask in Photoshop.
 
Optical System: 10 Ritchey-Chretien @ F/7.2, ST-7E USB NABG/CFW-8A CCD camera, STV/FSQ-106, AP900GTO mount.
 
Comments: Seeing 3.8 arc-sec.