First clear night in weeks, but very clear. Cold. CCD at 1.5 °C to start, falling to 0. Acquired with PicGoto/Astrotortilla. Went to 480 s subframes. Imaged up to the meridian, performed a flip, and imaged back down to the neighbors' tree. I was hoping to capture a little filament that runs from IC 417 on the right toward
NGC1931 on the left, and it is just barely visible. I'm a little hesitant to post this because I know it needs Hα before it will look decent, but here it is anyway.
In the revision, I have stretched much more aggressively. Still need Hα to finish this.
Date: 23 Dec, 2014
Subject: IC 417 and
NGC1931, “Spider and Fly” Nebulae
Scope: Orion ST80 + Antares 0.5x telereducer
Filter: Baader UHC-S
Mount: CG-5 (Synta motors, PicGoto Simplificado)
Guiding: 9x50 Finder/Guider + DSI Ic + PHD 2.4.1 (Win 7 ASCOM)
Camera: DSI IIc no cooling (1.5 to 0 °C)
Acquisition: Nebulosity 3.2.1, no dither
Exposure: 63x480 s
Stacking: Neb 3, bad pixel map, bias included, no flats, OSC nebula filter, histogram match, de-Bayer and square, trans+rot align, 1.5 SD stack.
Processing: StarTools 1.3.5.289 Crop; Wipe 76%; Develop 76.61%; HDR
ptimize; Color:Scientific 200%; Deconvolute: 2.5 pix; Life:Moderate; Track 3.1 pix; Magic 2 pix. Photoshop CC 2014 + Carboni Astronomy Tools Increase star color; Astroframe.
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