NGC 3184, Little Pinwheel Galaxy, 24 Mar 2014 (David Dearden)

NGC 3184, Little Pinwheel Galaxy, 24 Mar 2014

Conditions again started very well tonight. This is a first attempt for the Little Pinwheel Galaxy. I found it from µ UMa (very easy; it's right next door) but of course used the PicGoto to do it. I'm using 600-sec subframes. Guiding performance looks good. Had an unusual number of satellite trails early in the session. It is positively balmy tonight; the camera starts at 12.5 °C. Gusty wind came up after midnight, so guiding after the meridian flip became difficult and image quality degraded at that point.

Date: 24 Mar 2014

Subject: NGC 3184, Little Pinwheel Galaxy

Scope: AT8IN + HPS Coma Corrector

Filter: None

Mount: CG-5 (Synta motors, PicGoto Simplificado)

Guiding: 9x50 Finder/Guider + DSI Ic + PHD 2.2.2 (Win 7 ASCOM)

Camera: DSI IIc no chiller T = 9 °C)

Acquisition: Nebulosity 3.2.0, no dither

Exposure: 26 x 600 s

Stacking: Neb 3, bad pixel map, bias included, normalize first, trans+rot align, 1.75 SD stack.

Processing: StarTools 1.3.5.279 Crop; Wipe 82%; Develop 87.49%; Contrast; HDR

ptimize; Sharpen; Deconvolute 2.2; Color (Scientific) sat. 275%; Life:Isolate, mask fuzz 24.7; HDR:Equalize; Life

ptimize; Track read noise compensation 75.98%;. CS6 Astronomy Tools increase star color; Levels; Space noise reduction; Deep space noise reduction; Astro Frame.

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Status	Basic pending
Started	...
Astrometry.net job	6742213
PixInsight job	n/a
PixInsight queue size	n/a
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