IC 434 - Horsehead Nebula (Darius Kopriva)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 48 Ori · 48 sig Ori · 50 Ori) · 50 zet Ori · Alnitak · B33 · Flame Nebula · HD290812 · HD290814 · HD290815 · HD294281 · HD294297 · HD294298 · HD294300 · HD294301 · HD294302 · HD294303 · HD294304 · HD294306 · HD294307 · HD294308 · HD294338 · HD37524 · HD37525 · HD37545 · HD37564 · HD37633 · HD37641 · HD37642 · HD37661 · And 29 more.

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IC 434 - Horsehead Nebula

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IC 434 - Horsehead Nebula

The Horsehead Nebula (also known as Barnard 33) is a small dark nebula in the constellation Orion. The nebula is located just to the south of Alnitak, the easternmost star of Orion's Belt, and is part of the much larger Orion molecular cloud complex. It appears within the southern region of the dense dust cloud known as Lynds 1630, along the edge of the much larger, active star-forming H II region called IC 434.

The Horsehead Nebula is approximately 422 parsecs or 1,375 light-years from Earth. It is one of the most identifiable nebulae because of its resemblance to a horse's head.

The nebula was first recorded in 1888 by Scottish astronomer Williamina Fleming on a photographic plate taken at the Harvard College Observatory. One of the first descriptions was made by E. E. Barnard, describing it as: "Dark mass, diam. 4′, on nebulous strip extending south from ζ Orionis", cataloguing the dark nebula as Barnard 33.

Southern Hemisphere Astro

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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.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	5858414
PixInsight job	288YC8212WI5KQB7G23M3YYOTIP5EXTD
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h40m57s.67
RA (top/left)	05h38m34s.18
RA (top/right)	05h38m44s.28
RA (bottom/right)	05h43m21s.62
RA (bottom/left)	05h43m11s.12

Dec (center)	-02°28′34″.3
Dec (top/left)	-01°37′30″.8
Dec (top/right)	-03°21′14″.8
Dec (bottom/right)	-03°19′34″.8
Dec (bottom/left)	-01°35′47″.9

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IC 434 - Horsehead Nebula

IC 434 - Horsehead Nebula

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IC 434 - Horsehead Nebula

IC 434 - Horsehead Nebula

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