Synched on Deneb and used the PicGoto to easily find the Cocoon Nebula. Seeing was poor and I started in the Provo light dome. Some gusty wind. Chiller running at 2.5 A, CCD temperatures starting at 15 °C and dropping as low as 10 °C but rising again to about 12 °C. In contrast with the excellent guiding I got the night before with the exact same balance conditions, guiding performance was terrible, especially in DEC. As a result, I threw out a lot of subframes and could have discarded more.
Date: 1 Jul 2014
Subject: IC 5146, Cocoon Nebula
Scope: AT8IN
Filter: none
Mount: CG-5 (Synta motors, PicGoto Simplificado)
Guiding: 9x50 Finder/Guider + DSI Ic + PHD 2.3.0 (Win 7 ASCOM)
Camera: DSI IIc chiller at 2.50 A, ~12 °C
Acquisition: Nebulosity 3.2.0, no dither
Exposure: 56x300 s
Stacking: Neb 3, bad pixel map, bias included, normalize first, trans+rot align, 1.5 SD stack.
Processing: StarTools 1.3.5.279 Crop; Wipe:Color & brightness 75%; Develop 82.80%; Color:Scientific, 250%; HDR
ptimize; Deconvolute auto mask 2.5 pix; HDR
ptimize; Track RNC 1.23%; Magic:Shrink 1 pix; Life:Moderate. CS6 Astronomy Tools Increase star color; Healing brush; Astro Frame.
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