On large objects I am somewhat limited with the sensor size of the Atik 16HR...not to mention the corrected field size of the Orion ST120 at F4 (TV 0.8 reducer). Anyway, here's a slightly different view of a much photographed object.
5 hours of exposure (all 10 min subs)across two nights. Captured and guided with AstroArt 4.0. 4.5nm CS HA filter. No darks, no flats, no bias frames...they actually degraded the signal of the ultraclean Sony ICX-285 AL chip. Minimal processing - Subs averaged, slight gradient removal, and stretched in AstroArt - once again sigma combine seemed to degrade the signal of the squeaky clean Sony chip. Ap1200.
Happy Thanksgiving!
David Tasch
5 hours of exposure (all 10 min subs)across two nights. Captured and guided with AstroArt 4.0. 4.5nm CS HA filter. No darks, no flats, no bias frames...they actually degraded the signal of the ultraclean Sony ICX-285 AL chip
Happy Thanksgiving!
David Tasch
Attached Image: