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IC 2162, 7 Mar 2015, Hα False Color Animation, David Dearden
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IC 2162, 7 Mar 2015, Hα False Color Animation

Equipment

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Acquisition details

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Description

First observation of this emission nebula. Focused on Sirius, then synched from Betelgeuse with the PicGoto. This was one of those sessions where I had the wrong "invert" setting on the PicGoto, so I messed around for a while finding the target, which is not particularly bright, compounding my finding. No stars in the field of view were bright enough to use for focusing through the Hα filter. I had not imaged at this scale for a while and was concerned my guiding would be insufficient, but it turned out OK. After imaging for a while, I slewed over to a brighter star I could see in my guider and focused on it, then slewed back. After that everything was routine.

In the revision, I'm learning to drizzle stack. I think it substantially improved the resolution in this case.

Date: 7 Mar 2015

Subject: IC 2162

Scope: Astrotech AT8IN+High Point Scientific coma corrector

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 (about 0 °C)

Acquisition: Nebulosity 3.3.2, no dither

Exposure: 22x600 s

Stacking: Neb 3.3.2, bad pixel map, bias included, 33 flats, extract R, histogram match, deBayer & square, trans+rot align, 40-60% median combine.

Processing: StarTools 1.3.5.289 Crop; Wipe: Develop: 81.99%; HDR:Reveal core; Deconvolute 2.5 pix; Track 7.0 pix; Repair:Warp; Magic:Shrink 1 pix. Photoshop CC 2014 + Carboni Astronomy Tools Hα false color black space; Astroframe; Assemble animated GIF.

Comments

Revisions

  • IC 2162, 7 Mar 2015, Hα False Color Animation, David Dearden
    Original
  • Final
    IC 2162, 7 Mar 2015, Hα False Color Animation, David Dearden
    B

Sky plot

Sky plot

Histogram

IC 2162, 7 Mar 2015, Hα False Color Animation, David Dearden