Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  B33  ·  Horsehead nebula  ·  IC 434  ·  NGC 2023  ·  Sh2-277
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IC 434, Horsehead Nebula, Hα, 19 Oct 2014, David Dearden
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IC 434, Horsehead Nebula, Hα, 19 Oct 2014

Equipment

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Acquisition details

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Description

I've been looking forward to trying the Horsehead in Hα, and last night presented an opportunity. Some wind gusts. Lots of new software: OSX Yosemite, a new version of VMWare, and a new build of PHD2. This combination appears to be less stable as I crashed Nebulosity and PHD2 repeatedly. I had some trouble getting PicGoto Server to connect (I had to keep hitting the "connect" button repeatedly until it made the connection.) I'm still having problems with my USB connections in general, but that may not be software-related.

The B version has slightly more stretching and slightly less noise reduction.

Date: 19 Oct 2014

Subject: IC 434, Horsehead Nebula

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, 6.5 °C

Acquisition: Nebulosity 3.2.1, no dither

Exposure: 23x600 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; Autodev; HDRptimize; Life:Less=More; Deconvolute 4.0 pix; Track Grain size 3.0 pix; Magic:Shrink 1 pix. Photoshop CC 2014 + Carboni Astronomy Tools Hα false color; Astro Frame.

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Revisions

  • Final
    IC 434, Horsehead Nebula, Hα, 19 Oct 2014, David Dearden
    Original
  • IC 434, Horsehead Nebula, Hα, 19 Oct 2014, David Dearden
    B

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IC 434, Horsehead Nebula, Hα, 19 Oct 2014, David Dearden