Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  41 Ori A)  ·  41 Ori C  ·  41 Ori D  ·  42 Ori)  ·  43 Ori)  ·  44 Ori)  ·  Great Orion Nebula  ·  IC 420  ·  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 45 Ori  ·  The star Hatysa (ι Ori  ·  The star Mizan Batil I (c Ori  ·  The star Mizan Batil II (θ2 Ori  ·  The star Trapezium (θ1 Ori A  ·  The star θ1 Ori C  ·  The star θ1 Ori D  ·  the Running Man Nebula
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M42 (Orion Nebula), Michael E.
M42 (Orion Nebula)
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M42 (Orion Nebula)

Getting plate-solving status, please wait...
M42 (Orion Nebula), Michael E.
M42 (Orion Nebula)
Powered byPixInsight

M42 (Orion Nebula)

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Description

M42 with a total of ~18h (1071 x 60s) taken without any filter. The weighted batch processing with PixInsight alone took 27h 
While trying to preserve the core with its trapezium cluster (which didn't quite work out as expected) I used the qhy268c in its (original) fullwell capacity mode. The chosen gain of 60 is not optimal for this mode due to its high readout noise. Combined with the large amount (>1000) of subs might be the reason that this picture suffers from a slight amount of horizontal stripes especially visible in the lower part.
Or maybe I'm wrong and someone has a better explanation for it...

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M42 (Orion Nebula), Michael E.