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  ·  HD294178  ·  HD294179  ·  HD294180  ·  HD294221  ·  HD294222  ·  HD294259  ·  HD294261  ·  HD294262  ·  HD294263  ·  HD294321  ·  HD294327  ·  HD294328  ·  HD36295  ·  HD36324  ·  HD36364  ·  HD36365  ·  HD36366  ·  HD36412  ·  And 102 more.
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Orion Nebula, Michael Cullen
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Orion Nebula

Getting plate-solving status, please wait...
Orion Nebula, Michael Cullen
Powered byPixInsight

Orion Nebula

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Acquisition details

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Description

Orion Nebula in SHO

Captured between December 19th and 20th.

62x 30s Ha
20x 60s Ha

40x 180s Ha
12x 300s Ha

1x 180s OIII
12x 300s OIII

15x 180s SII
15x 300s SII

Stacked the 30s and 60s Ha frames, then the 180s and 300s frames.  Also stacked the OIII together then the SII.  The difference wasn't very noticeable and combining them made it easier to process.  I also captured many more frames, but lost many to bad tracking and other issues.

Processed each individually in Photoshop, keeping the 30s/60s Ha image rather dark to keep the core intact.  I then overlaid this onto the 180s/300s Ha image to create a HDR image.  Didn't end up mattering much because the SII and OIII overpowered the core anyway.
Each image was stretched and processed using High Pass filters.
Combined the images with Annie's Astro Actions to create a SHO image.  Color balanced, de-noised, and put a final High Pass filter over.

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Histogram

Orion Nebula, Michael Cullen

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