I probably should not have tried to image at this scale with the wind issues and late start I had, but decided to do it because of the sky’s clarity and darkness. Synced on λ Sag and had an easy goto. I still can't get Astrotortilla plate solves to work, but after watching the log I think it is because the image file is not getting passed correctly from Nebulosity. Another warm night; the camera started at 24 °C and with the chiller at 2.5 A I got it down to 15 °C. The wind gusts made my guiding performance terrible, so besides starting late I threw out a lot of subframes and the result is noisy. In addition, I had issues with DEC motion; it seems like the mount is sticking. This is another target I can use for adding H-α later when the Moon is more full.
Date: 1 Aug 2014
Subject: M17, Swan (or Omega or Lobster) Nebula
Scope: AT8IN
Filter: Meade IR cut
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, 15 °C
Acquisition: Nebulosity 3.2.0, no dither
Exposure: 20x300 s
Stacking: Neb 3, bad pixel map, bias included, no flats, normalize first, trans+rot align, 1.5 SD stack.
Processing: StarTools 1.3.5.279 Crop; Wipe:Color & brightness 80%; Develop 78.49%; HDR
ptimize; save; undo; HDR:Core reveal; Color:Scientific, 250%; Deconvolute auto mask 2.5 pix; Life:Moderate; Track RNC 1.47%; Magic:Shrink 1 pix; to the Core Reveal image: Color:Scientific, 250%; Deconvolute auto mask 0.49 pix; Magic:Shrink 1 pix; CS6 Astronomy Tools layer the HDR
ptimize image on top of the HDR:Core Reveal with 85% opacity; Increase star color; Less crunchy more fuzzy; Reveal all layer mask cut through in bright places; Astro Frame.
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