Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Cigar Galaxy  ·  M 82  ·  NGC 3034
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M82 (The Cigar Galaxy) & SN 2014J, UHC-S, 24 Feb 2014, David Dearden
M82 (The Cigar Galaxy) & SN 2014J, UHC-S, 24 Feb 2014
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M82 (The Cigar Galaxy) & SN 2014J, UHC-S, 24 Feb 2014

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Description

I wanted to image the supernova before it faded out, hence this target on the first clear opportunity I've had. I balanced the mount more carefully than in my last session and was rewarded with extremely good guiding performance from my PIC controller. Unfortunately, my polar alignment was rather poor so I had quite a bit more error in Dec. No chiller, CCD at 5-10 °C.

Date: 24 Feb 2014

Subject: M82, Cigar Galaxy and SN 2014J

Scope: AT8IN+High Point Scientific coma corrector spaced properly

Filter: UHC-S

Mount: CG-5 (Synta motors), PIC handcontrol

Guiding: 9x50 Finder/Guider + DSI Ic + PHD 2.2.1

Camera: DSI IIc (no chiller, T = 5.5 °C)

Acquisition: Nebulosity 3.2.0, no dither

Exposure: 22 x 300 s

Stacking: Neb 3, bad pixel map, bias included, normalize first, trans+rot align, 1.5 SD stack.

Processing: StarTools 1.3 Crop; Wipe:Color & Brightness; Develop 87.49%; HDR:core reveal; Deconvolute (2.7); Color:Scientific, 267%; Track, RNC 3.43%; Magic:Shrink Core 13, Shrink 3; Life:Moderate. CS6 Astronomy Tools Increase Star Color 2x, AstroFrame

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M82 (The Cigar Galaxy) & SN 2014J, UHC-S, 24 Feb 2014, David Dearden