NGC 2023 & B33 - Horse Head Nebula (Mauricio Moreno)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 48 Ori · 48 sig Ori · 50 Ori) · 50 zet Ori · Alnitak · B33 · Flame Nebula · HD290761 · HD290767 · HD290768 · HD290808 · HD290812 · HD290814 · HD290815 · HD290854 · HD294272 · HD294278 · HD294279 · HD294280 · HD294281 · HD294297 · HD294298 · HD294300 · HD294301 · HD294302 · HD294303 · HD294304 · HD294306 · HD294307 · HD294308 · And 46 more.

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NGC 2023 & B33 - Horse Head Nebula

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NGC 2023 & B33 - Horse Head Nebula

Orion, The Warrior, is one of the most recognized constellations in the sky.

The "Belt of Orion", or "the three Marys", is made up of three stars that are highly distinguishable to the naked eye even from severely polluted skies. The three stars that compose it are called Mintaka, Alnilam and Alnitak. Surrounding this last star, Alnitak, is the Barnard B33 object (the nebula NGC 2023 is the blue nebula just below the Horsehead, thanks Carlos PhotoCage for the observation), a nebula known as the Horsehead Nebula. Discovered in 1785 by William Herschel in January 1785, it is one of the most distinctive emission nebulae ever photographed by man. Visible on warm summer nights from the southern hemisphere, special instrumentation is required, since we cannot capture its light by optical means, but only through astrophotographic exposures.

This is a first version of 40 photos taken from Angostura, Chile's Region VI, in a Bortle 5 sky with a camera electronically cooled to -30 degrees.
Telescope: William Optics Z81
Mount: IOptron CEM70
Main camera: ASI 294MC PRO
Asiair Pro
Stacked in DSS
Edit done in PinxInsight
Bortle class 5
40 x 300 seconds lights

Original
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Final
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Title: reprocess

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Southern Hemisphere Astro

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Status	Advanced success
Started	...
Astrometry.net job	6471961
PixInsight job	4CDFCC26ME257MUIY3H024PMNZXQE1R2
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h41m01s.70
RA (top/left)	05h38m33s.19
RA (top/right)	05h38m27s.82
RA (bottom/right)	05h43m29s.44
RA (bottom/left)	05h43m34s.48

Dec (center)	-02°20′39″.1
Dec (top/left)	-01°17′35″.1
Dec (top/right)	-03°22′51″.9
Dec (bottom/right)	-03°23′42″.10
Dec (bottom/left)	-01°18′18″.4

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NGC 2023 & B33 - Horse Head Nebula

NGC 2023 & B33 - Horse Head Nebula

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NGC 2023 & B33 - Horse Head Nebula

NGC 2023 & B33 - Horse Head Nebula

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