Horsehead Nebula in HaRGB (Marc Mantha)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 48 sig Ori · 50 zet Ori · Alnitak · B33 · Flame Nebula · Horsehead nebula · IC 431 · IC 432 · IC 434 · IC 435 · LBN 944 · LBN 946 · LBN 950 · LBN 953 · LBN 954 · LBN 958 · LBN 962 · LBN 965 · LDN 1635 · LDN 1636 · NGC 2023 · NGC 2024 · Orion B · Sh2-277 · The star Alnitak (ζOri) · The star σOri · VdB51

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Horsehead Nebula in HaRGB

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Horsehead Nebula in HaRGB

Ha data to the rescue! In one of the 2 clear nights I had in the past 3 months or so, I had started working on the Horsehead nebula. Original plan was SHO, but I changed my mind because well first, personally, I think this target looks better in RGB and second, the clouds or full moon are always in the way. So after my first night of gathering Ha, I opted for gathering RGB data on the next clear night and do an HaRGB version.

For this image, I did 2 version: one RGB only and one HaRGB for which I combined the Ha and R data into one red channel and I then applied Ha as a luminance over it, finally I blended bay the RGB data into the LHaRGB version to get the planetary nebulae and flame nebula to show their truer colors.

it has been a pain to process, I hope that you enjoy it!

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Status	Advanced success
Started	...
Astrometry.net job	5354051
PixInsight job	C2Z2JCKQOYD310YZAP59HATXPAPL41BR
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h41m01s.90
RA (top/left)	05h36m51s.89
RA (top/right)	05h37m44s.56
RA (bottom/right)	05h45m12s.25
RA (bottom/left)	05h44m18s.60

Dec (center)	-02°29′36″.0
Dec (top/left)	-01°07′27″.2
Dec (top/right)	-04°00′15″.1
Dec (bottom/right)	-03°51′42″.5
Dec (bottom/left)	-00°58′56″.7

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Horsehead Nebula in HaRGB

Horsehead Nebula in HaRGB

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Horsehead Nebula in HaRGB

Horsehead Nebula in HaRGB

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