Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Orion Nebula  ·  Lower Sword  ·  M 42  ·  M 43  ·  Mairan's Nebula  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1982  ·  Orion Nebula  ·  The star 42Ori  ·  The star 45Ori  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri  ·  the Running Man Nebula
M42 HDR, PeteS_MA
M42 HDR
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M42 HDR

M42 HDR, PeteS_MA
M42 HDR
Powered byPixInsight

M42 HDR

Equipment

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Acquisition details

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Description

RGB image with H-alpha as a luminance layer. The H-alpha was not blended with the Red channel.

Imaged across at least a dozen sessions, too complicated for the form.

128 minutes of short 15s exposures at gain 0

686 minutes of medium 120s exposures gain 10

550 minutes of long 300s exposures at gain 30

All channels and exposure times stacked individually in APP. Imported to Pixinsight for noise reduction, HDR transform and masked stretch. Color tweaks, contrast bump and hi-pass filtering in Photoshop. There is less post processing in this image than is usual for me.

Comments

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Sky plot

Histogram

M42 HDR, PeteS_MA