Orion nebula (M42, M43 and surrounding dust) (Lee)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 36 ups Ori · 41 the01 Ori · 42 c Ori · 43 the02 Ori · 44 iot Ori · 45 Ori · 48 sig Ori · 49 d Ori · De Mairan's nebula · Great Orion Nebula · Hatysa · IC 420 · IC 430 · LBN 950 · LBN 958 · LBN 961 · LBN 963 · LBN 965 · LBN 967 · LBN 974 · LBN 977 · LBN 979 · LDN 1640 · LDN 1641 · Lower Sword · M 42 · M 43 · Mairan's Nebula · NGC 1924 · NGC 1973 · And 25 more.

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Orion nebula (M42, M43 and surrounding dust)

Powered byPixInsight

Orion nebula (M42, M43 and surrounding dust)

The Samyang was wide open at F2 and this was 203 x 30s and 30 x 5s. Light pollution was removed in APP, then HDRComposition was used in PixInsight before processing.

A good star mask with StarNet (not always a certainty) allowed some decent star reduction using just HistogramTransformation... at the cost of some colour.

I've had a few goes at this one and always end up trying to squeeze too much out of that background, but this time I've tried to stop before that. This means I've probably still gone a few steps over the line but not too far I hope! I think it still looks OK full size 1:1.

The Ha in the top left is the edge/top of IC434 (Horse Head). I tried to squeeze them both in the image below, but they were right at the edges of the ASI533 sensor.

Captured with Voyager, stacked and calibrated in APP then processed in PixInsight.

Original
Final
C

C

Description: Slight adjustment of colours and sharpening

Uploaded: ...

Samyang 135 f/2
ASI533MC Pro
UK Astro-Imaging

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Status	Advanced success
Started	...
Astrometry.net job	4230574
PixInsight job	ONRETYV0MVEODYYFRLRYBDKK0XCUCKAG
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h35m22s.48
RA (top/left)	05h36m47s.16
RA (top/right)	05h21m36s.14
RA (bottom/right)	05h33m56s.87
RA (bottom/left)	05h49m09s.98

Dec (center)	-05°21′17″.7
Dec (top/left)	-01°55′17″.1
Dec (top/right)	-04°59′36″.2
Dec (bottom/right)	-08°47′11″.1
Dec (bottom/left)	-05°41′54″.1

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Orion nebula (M42, M43 and surrounding dust)

Orion nebula (M42, M43 and surrounding dust)

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Orion nebula (M42, M43 and surrounding dust)

Orion nebula (M42, M43 and surrounding dust)

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Sky plot

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