Horsehead at 633mm (Ron Crouch)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: Horsehead nebula · IC 431 · IC 432 · IC 434 · IC 435 · NGC 2023 · NGC 2024 · The star Alnitak (ζOri) · The star σOri

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Horsehead at 633mm

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Horsehead at 633mm

Image acquired as RGB with CLS luminance as it rose over Dallas Texas. A "RGBL first light" for the TMB-80 and QSI 6120 camera. About 2.5 hours for each filter with luminance made by combination of all filter masters.

Original
B
Final
C

B

Description: Tried to reduce the reddish/greenish cast. Also blended the Ha with stars removed into the red (20%) before making superluminace. Big workflow change was fighting gradients. Did DBE on each filter except Ha before combination and repeated on linear RGB again.

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C

Description: Opps sent wrong file.. More aggressive MLT NR with better range mask at final stage to try and reduce the bad small scale noise. Also darn title has a typo. TMB 80 F/4.8 is ~380mm not 633.. 633mm is another OTA.

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Status	Basic success
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Astrometry.net job	1862044
PixInsight job	n/a
PixInsight queue size	n/a
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Horsehead at 633mm

Horsehead at 633mm

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Horsehead at 633mm

Horsehead at 633mm

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