Orion's Belt with H-alpha (Will Czaja)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 34 del Ori · 46 eps Ori · 48 sig Ori · 50 zet Ori · Alnilam · Alnitak · B33 · Flame Nebula · Horsehead nebula · IC 423 · IC 426 · IC 431 · IC 432 · IC 434 · IC 435 · Mintaka · NGC 2023 · NGC 2024 · Orion · Orion B · PK204-16.1 · Part of the constellation Orion (Ori) · Sh2-277 · The star Alnilam (εOri) · The star Alnitak (ζOri) · The star Mintaka (δOri) · The star σOri · VV Ori · VdB48 · VdB51

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Orion's Belt with H-alpha

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Orion's Belt with H-alpha

This is Orion's Belt with H-alpha signal added.

The three bright stars from left to right are Mintaka, Alnilam, and Alnitak. Mintaka is a double star whose stars orbit around each other every 6 days. Alnilam is a blue supergiant 375,000 times more luminous than our Sun. And Alnitak is a triple star system consisting of three extremely bright and hot blue stars. The largest of the triplet, Alnitak Aa, is 28 times more massive and has a diameter 20 times larger than our Sun.

The famous Horsehead Nebula (Barnard 33) can be seen to the right of Alnitak. It's a dark nebula of dust in the middle of the Orion Molecular Cloud Complex. This cloud complex is a huge star forming region that encompasses all of the Orion constellation, including the Orion Nebula located in the middle of Orion's sword.

Process details:

I combined about 7 hours of Ha data with 12 hours of RGB data in PixInsight. I then used StarNet++ to obtain a starless image and did a 50% blend with my RGBHa image in Photoshop. Final touches on color and HDR were adjusted in Photoshop.

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Status	Advanced success
Started	...
Astrometry.net job	4179028
PixInsight job	NMPQWQPFQQAZKL6R98H3SD3NGEEX3N4B
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h37m51s.31
RA (top/left)	05h30m03s.26
RA (top/right)	05h36m19s.19
RA (bottom/right)	05h45m39s.42
RA (bottom/left)	05h39m23s.21

Dec (center)	-01°24′40″.2
Dec (top/left)	-00°10′29″.4
Dec (top/right)	-03°41′16″.8
Dec (bottom/right)	-02°38′44″.7
Dec (bottom/left)	+00°51′57″.3

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Orion's Belt with H-alpha

Orion's Belt with H-alpha

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Orion's Belt with H-alpha

Orion's Belt with H-alpha

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