NGC7635, The Bubble Nebula in Cassiopeia

 

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Exposure Data: 7/5/2002.  LRGB: 16x5m, 4x5m, 4x5m, 4x7m, RGB 2x2. -5C, 1.0 arc-sec./pixel. . Standard background flux of 120 e-/AS2/M2/sec.
 
Processing: Acquired via script with Maxim, reduced and aligned, in Mira, RGB combine in Maxim, L RL 2.2,0.8,5 HF in AIP4WIN, LRGB combine, slight USM, curves and levels in Photoshop.
 
Optical System: 10 Ritchey-Chretien @ F/9, ST-8E USB NABG/CFW-8A CCD camera, STV/FSQ-106, Paramount ME mount.
 
Comments: Seeing was 3.3 arc-sec. L deconvolved to 3.2 arc-sec.