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NGC 2237, Rosette Nebula, Hα False Color Animation, David Dearden

NGC 2237, Rosette Nebula, Hα False Color Animation

Equipment

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Acquisition details

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Description

The sky was a bit hazy. Got a late start after returning from teaching in Salt Lake City. Used Astrotortilla to plate solve and sync the PicGoto. I wasn't too far off with my rough pointing. Then did the goto and was right on. Attempted to rotate the camera to get roughly the same alignment as my 12 Mar 2013 RGB image so I can combine with that later.

Date: 8 Jan 2015

Subject: NGC 2237, Rosette Nebula

Scope: Orion ST80 + Antares 0.5x telereducer

Filter: Baader 7 nm Hα

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 (-8.5 to -11.5 °C)

Acquisition: Nebulosity 3.2.2, no dither

Exposure: 36x600 s

Stacking: Neb 3, bad pixel map, bias included, no flats, extract R, histogram match, square, trans+rot align, 1.5 SD stack.

Processing: StarTools 1.3.5.289 Crop; AutoDevelop; HDRptimize; Develop 74.99%; HDRptimize; Deconvolute: 4.0 pix; Track 2.0 pix; Magic 1 pix. Photoshop CC 2014 + Carboni Astronomy Tools Hα false color black sky; Astroframe.

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NGC 2237, Rosette Nebula, Hα False Color Animation, David Dearden