Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  17 rho Ori  ·  20 tau Ori  ·  21 Ori  ·  22 o Ori  ·  23 m Ori  ·  25 Ori  ·  27 p Ori  ·  28 eta Ori  ·  30 psi Ori  ·  31 Ori  ·  33 n01 Ori  ·  34 del Ori  ·  38 n02 Ori  ·  41 the01 Ori  ·  42 c Ori  ·  43 the02 Ori  ·  44 iot Ori  ·  45 Ori  ·  46 eps Ori  ·  47 ome Ori  ·  48 sig Ori  ·  50 zet Ori  ·  51 b Ori  ·  56 Ori  ·  59 Ori  ·  60 Ori  ·  Alnilam  ·  Alnitak  ·  B33  ·  De Mairan's nebula  ·  And 60 more.
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Central Region of Orion, JDJ
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Central Region of Orion

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Central Region of Orion, JDJ
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Central Region of Orion

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Description

The sight of Orion in the southern sky around midnight signals the start of the winter astro-imaging season. I shot some widefield images of my old favorite the other night. The results reminded me both of how much I enjoy this region of the sky and how bad the light pollution is in my southern sky. The full image includes the entire Orion constellation, but I had to crop it down to the central region due to extreme LP near the horizon. I was happy to see a bit of Barnard's Loop visible along with the usual highlights including the Orion nebula, Flame nebula, and Horsehead nebula.

Imaged with 50mm Nikon at F/4, IDAS LPS D1 Clip Filter, and full spectrum modified Nikon D5300.

Pre-processed using PixInsight Batch Pre-Processing (BPP) script. Images calibrated using darks, bias, and flats. Stacked 41 subs (180 sec at ISO 200) for a total integration time of ~2 hours. Post-processed in Pixinsight: Cropped, gradient removal with ABE (multiple applications), MLT for noise reduction, Photometric Color Calibration, stretched using masked stretch, ACDNR for noise reduction, and Color Saturation boost.

Comments

Revisions

  • Central Region of Orion, JDJ
    Original
  • Central Region of Orion, JDJ
    B
  • Final
    Central Region of Orion, JDJ
    C

B

Description: Updated version with fewer subs. Original included some subs with tree branches on the left side of the frame (I have a narrow window for capturing all of Orion).

Uploaded: ...

C

Description: NBRGB version adding Ha data from https://astrob.in/v199lp/0/

Uploaded: ...

Sky plot

Sky plot

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Central Region of Orion, JDJ