IC434 Horsehead Nebula (Luís Ramalho)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: B33 · Flame Nebula · Horsehead nebula · IC 434 · IC 435 · NGC 2023 · Orion B · Sh2-277

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IC434 Horsehead Nebula

Link: http://www.astrosurf.com/ramalho/nebulosas/b33/ic434_20181230.html

Powered byPixInsight

IC434 Horsehead Nebula

Link: http://www.astrosurf.com/ramalho/nebulosas/b33/ic434_20181230.html

About 1600 light-years away, apparently around the star Zeta Orionis (Alnitak), are a set of different types of nebulae. The Horsehead Dark Nebula (Barnard 33), in the Orion constellation, is one of the most photographed objects in the sky. It was discovered on a photographic plate in the late 19th century. Its characteristic shape is the extension of an immense and dense cloud of interstellar dust that extends from the bottom of this image and which absorbs entirely the light of the stars located in the background. The B33 is difficult to observe visually, even with telescopes with generous aperture. In a few hundred years, the internal dynamics of the B33 will have changed its appearance. The diffuse IC434 emission nebula, oriented in a North-South direction, is excited by the ultraviolet radiation of the star Sigma Orionis that is not visible in the image. This star causes the ionization of hydrogen, which, brilliantly, shows the dark shape of the horse's head. Just below and to the left of the horse's head, the reflection nebula NGC2023 can be seen in this image, whose grains of dust disperse blue light more efficiently than red, giving it a bluish color image.

Nebulas

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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.
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Status	Advanced success
Started	...
Astrometry.net job	4052083
PixInsight job	TEKVS51S3AV7HAFL3K8PI2VG6XK0TPGR
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h41m09s.46
RA (top/left)	05h38m58s.79
RA (top/right)	05h38m58s.96
RA (bottom/right)	05h43m20s.23
RA (bottom/left)	05h43m19s.87

Dec (center)	-02°28′26″.4
Dec (top/left)	-02°00′40″.6
Dec (top/right)	-02°56′16″.3
Dec (bottom/right)	-02°56′11″.4
Dec (bottom/left)	-02°00′35″.7

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IC434 Horsehead Nebula

IC434 Horsehead Nebula

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IC434 Horsehead Nebula

IC434 Horsehead Nebula

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