Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  41 the01 Ori  ·  42 c Ori  ·  43 the02 Ori  ·  44 iot Ori  ·  45 Ori  ·  De Mairan's nebula  ·  Great Nebula in Orion  ·  Hatysa  ·  LBN 974  ·  LBN 977  ·  LDN 1640  ·  M 42  ·  M 43  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1982  ·  Sh2-279  ·  Sh2-281  ·  The star 42Ori  ·  The star 45Ori  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri
Getting plate-solving status, please wait...
M42 Orion in HDR, Ray Heinle
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M42 Orion in HDR

Getting plate-solving status, please wait...
M42 Orion in HDR, Ray Heinle
Powered byPixInsight

M42 Orion in HDR

Equipment

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Acquisition details

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Description

I used my old QHY8 camera since this my only camera with a 16-bit A to D converter. This is my first attempt at HDR (High Dynamic Range) operations with Pixinsight. It is also my "Post Amageddon" posting to demonstrate that I still have faith in Astrobin.

20-10 second exposures, 20-30 second exposures, 13-90 second exposures, 16-270 second exposures.

Each exposure group was processed separately but left linear. Then the four groups were added with HDR Composition and then with HDR Multiscale Transform to map the image into range such that it could be represented by a jpeg.

Comments

Sky plot

Sky plot

Histogram

M42 Orion in HDR, Ray Heinle