Extremely good conditions, if my guiding is any indication; I got some of the best guiding performance ever out of this session (sub arcsec), after resetting the mesh on my RA gears. Clear, cold. Chiller running at 2.5 A, 3-7 °C. This is a target Kier suggests would be difficult with a one-shot color camera, so I decided to use a light pollution filter (this target was in the light dome of the city to my north most of the night) and go with 600 s subframes. It’s a beautiful object. It looks like it has a lot of Hα, though I wonder if some of the reddening is just due to the light passing through the dust of the Milky Way’s disk plane.
Date: 28 Oct 2014
Subject: IC 342, Spiral galaxy in Camelopardalis near Milky Way galactic plane
Scope: AT8IN
Filter: Baader UHC-S
Mount: CG-5 (Synta motors, PicGoto Simplificado)
Guiding: 9x50 Finder/Guider + DSI Ic + PHD 2.3.1k (Win 7 ASCOM)
Camera: DSI IIc chiller at 2.50 A, 3-7 °C
Acquisition: Nebulosity 3.2.1, no dither
Exposure: 30x600 s
Stacking: Neb 3, bad pixel map, bias included, no flats, normalize, trans+rot align, 1.5 SD stack.
Processing: StarTools 1.3.5.289 Crop; Wipe 75%; Develop 87.49%; HDR
ptimize; Color:Scientific 225%; Life:Moderate; Deconvolute: 2.0 pix; Track 5.0 pix, Smoothness 84%; Magic 1 pix. Photoshop CC 2014 + Carboni Astronomy Tools Increase star color; Deep space noise reduction; Levels with a layer mask; Astroframe.
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