The Horsehead Nebula (Barnard 33) - RGB only (dswtan)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 50 Ori) · 50 zet Ori · Alnitak · B33 · Flame Nebula · Horsehead nebula · IC 434 · LBN 953 · LBN 954 · NGC 2023 · NGC 2024 · Orion B · Sh2-277 · The star Alnitak (ζ Ori

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The Horsehead Nebula (Barnard 33) - RGB only

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The Horsehead Nebula (Barnard 33) - RGB only

One of my "white whales", the Horsehead. All the usual troubles with Alnitak, etc.

This is the RGB-only version of my Ha one posted at the end of February. I captured RGB at the time, not much, but sufficient. Took more work to get an acceptable image than the simple Ha.

First light with my new CEM70 -- much happier pairing with the AT130 EDT than the GEM45!

Basic workflow:
WBPP
GradientCorrection
BXT correct only
SPCC
BXT light sharpening
NXT light noise reduction
EZ Soft Stretch (taking a holiday from GHS when this still works well for me)
SXT to split nebula and stars
Further NXT, BXT
Curves for saturation and contrast
Bill Blanshan's SCNRv4
LHE
Recombine stars
Bill Blanshan Star Reduction v1
Final adjustments in Lightroom

PixInsight Addicts
Astro-Tech Imaging Group
The refractors!
Cloudy Nights
SF Bay Area Imagers
Imaged with N.I.N.A.

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
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Status	Advanced success
Started	...
Astrometry.net job	9648541
PixInsight job	6FJIV7YFRZF23NAI3Z6G8V0T5N1CSLIH
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h40m35s.27
RA (top/left)	05h38m58s.30
RA (top/right)	05h38m59s.22
RA (bottom/right)	05h42m12s.42
RA (bottom/left)	05h42m11s.69

Dec (center)	-02°23′58″.4
Dec (top/left)	-01°48′24″.9
Dec (top/right)	-02°59′36″.9
Dec (bottom/right)	-02°59′25″.5
Dec (bottom/left)	-01°48′10″.3

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The Horsehead Nebula (Barnard 33) - RGB only

The Horsehead Nebula (Barnard 33) - RGB only

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The Horsehead Nebula (Barnard 33) - RGB only

The Horsehead Nebula (Barnard 33) - RGB only

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Description

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Sky plot

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