Another object that caught my eye on Astrobin, the "Ghost of Cassiopeia" is trivially easy to find because it's in the same field of view as the bright
star γ Cas. I wasn't sure it would be bright enough to see with my equipment in 600 s subs, but it is. I deliberately left γ Cas in the frame because that
star is what lights up this nebula. Chiller at 2.5 A, 12.5 °C. Clouds rolled in and ended the session early, so I finally shot a new set of darks and created a new bad pixel map to use with this.
Date: 11 Oct 2014
Subject: IC 63, γ Cas Nebula, “Ghost of Cassiopeia”
Scope: Astrotech AT8IN + Antares 0.5x telereducer
Filter: Baader Hα
Mount: CG-5 (Synta motors, PicGoto Simplificado)
Guiding: 9x50 Finder/Guider + DSI Ic + PHD 2.3.1 (Win 7 ASCOM)
Camera: DSI IIc chiller at 2.50 A, 11.5-9.0 °C
Acquisition: Nebulosity 3.2.1, no dither
Exposure: 20x600 s
Stacking: Neb 3, bad pixel map, bias included, no flats, OSC red channel extract, normalize, square, trans+rot align, 1.5 SD stack.
Processing: StarTools 1.3.5.289 Crop; Develop 75%; HDR
ptimize; Life:Moderate; Deconvolute 3.5 pix; Track Grain size 6.0 pix; Magic:Shrink 1 pix. Photoshop CC 2014 + Carboni Astronomy Tools deep space noise reduction, Hα false color; Astro Frame.
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