Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  41 Ori A)  ·  41 Ori C  ·  41 Ori D  ·  41 the01 Ori  ·  42 Ori)  ·  42 c Ori  ·  43 Ori)  ·  43 the02 Ori  ·  44 Ori)  ·  44 iot Ori  ·  45 Ori  ·  Great Orion Nebula  ·  HD294175  ·  HD294177  ·  HD294178  ·  HD294179  ·  HD294180  ·  HD294181  ·  HD294217  ·  HD294218  ·  HD294220  ·  HD294221  ·  HD294222  ·  HD294259  ·  HD294261  ·  HD294262  ·  HD294263  ·  HD294292  ·  HD294293  ·  HD294320  ·  And 145 more.
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Orion Nebula (M42) in Narrowband, JDJ
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Orion Nebula (M42) in Narrowband

Getting plate-solving status, please wait...
Orion Nebula (M42) in Narrowband, JDJ
Powered byPixInsight

Orion Nebula (M42) in Narrowband

Equipment

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Acquisition details

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Description

Imaged the Orion Nebula (M42) using dual narrowband filters on the nights of December 19/22, 2021 and January 26/29, 2022 in Ha/OIII and February 5/9/10/11, 2022 in SII/OIII. These are the narroband Ha/OIII/SII data.

Imaged with Astrotech AT60 at F/4.8 (288 mm focal length) using Astrotech ATRF60 field flattener/0.8x reducer, Optolong L-Enhance dual narrowband filter (for Ha and OIII) and IDAS NB3 dual narrowband filter (for SII & OIII), and full spectrum modified Nikon D5300.  Imaging controlled using an ASIAir Plus with focus via EAF.  Total integration time of ~8 hours  in Ha/OIII and ~6 hours in SII/OIII:
Ha/OIII: 99 subs at ISO400 x 300 sec
SII/OIII: 77 subs at ISO400 x 300 sec

Pre/post-processing in PixInsight.   Images calibrated using Weighted Batch Pre-Processing (BPP) script using darks, flats, and flat darks. Extracted R/B/G channels and processed R (Ha) and G+B (OIII) channels separately.  Registered and stacked using StarAlignment and Integration processes. Post-processing steps included: Cropped, gradient removal with ABE and noise reduction using MLT, masked stretch, curves transformation, HDR transformation using EZHDR, and local histogram transformation.

Original version = H-alpha image
Rev B = starless H-alpha image
Rev C = OIII image
Rev D = SII image

Comments

Revisions

  • Final
    Orion Nebula (M42) in Narrowband, JDJ
    Original
  • Orion Nebula (M42) in Narrowband, JDJ
    B
  • Orion Nebula (M42) in Narrowband, JDJ
    C
  • Orion Nebula (M42) in Narrowband, JDJ
    D

B

Description: Starless H-alpha image

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C

Description: OIII image

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D

Description: SII image

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Sky plot

Sky plot

Histogram

Orion Nebula (M42) in Narrowband, JDJ

In these collections

Orion