M42 - HaRGB @135mm (Tom Gray)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 Ori A) · 41 Ori C · 41 Ori D · 41 tet01 Ori A · 41 tet01 Ori B · 41 tet01 Ori D · 42 Ori) · 42 c Ori · 43 Ori) · 43 tet02 Ori · 44 Ori) · 44 iot Ori · 45 Ori · 49 Ori) · 49 d Ori · De Mairan's Nebula · Great Orion Nebula · Hatysa · IC 420 · IC 430 · LBN 963 · LBN 965 · LBN 967 · LBN 974 · LBN 977 · LBN 979 · LDN 1640 · LDN 1641 · Lower Sword · M 42 · And 28 more.

M42 - HaRGB @135mm

My final images of M42 this year are a new processing of the data from my last two posts - combining the Ha and RGB data. Initially I used Siril to extract RGB channels and then composite with Ha as L, but struggled to pull any colour from this. Normalising the data in each channel using Nebulosity 4 allowed me to combine the L(Ha) RGB with better colour. Stretched using Siril GHS followed by use of HDR wavelets to bring out detail in the core. Rev A using SetiAstro Suite HDR wavelets and curves to boost saturation. In Rev B, I used Startools HDR module followed by sharpening to bring out more detail. I'd be interested in which you prefer. If you are bored with yet another M42 image, then I understand.

Final
Original
B

B

Title: Cropped with HDR and sharpening

Uploaded: ...

Altair Astro 183 M/C Hypercams
UK Astro-Imaging
Messier Objects
StarTools
Camera Lens Astrophotography

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Status	Advanced success
Started	...
PixInsight job	ESKGDISJ6IIR33FL6U53FME3ZIXDRA10
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h34m46s.34
RA (top/left)	05h42m43s.53
RA (top/right)	05h27m53s.54
RA (bottom/right)	05h26m46s.41
RA (bottom/left)	05h41m41s.70

Dec (center)	-05°23′54″.2
Dec (top/left)	-03°38′24″.10
Dec (top/right)	-03°22′26″.8
Dec (bottom/right)	-07°09′08″.2
Dec (bottom/left)	-07°25′08″.0

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M42 - HaRGB @135mm

M42 - HaRGB @135mm

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M42 - HaRGB @135mm

M42 - HaRGB @135mm

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