Horsehead region (Bruce)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: Horsehead nebula · IC 431 · IC 432 · IC 434 · IC 435 · NGC 2023 · NGC 2024 · The star Alnitak (ζOri) · The star σOri

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Horsehead region

Link: http://www.meadowlarkridgeobservatory.com/horsehead-halrgb/

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Horsehead region

Link: http://www.meadowlarkridgeobservatory.com/horsehead-halrgb/

This remarkable area of nebulosity is located near the star Alnitak which is the easternmost star in Orion’s belt. The radiation from Alnitak causes the nebulae to emit light. The Horsehead Nebula runs south (right) from Alnitak and is designated IC 434. It is the bright red region in the photo. The Flame Nebula (NGC 2024) lies just below (east) of Alnitak. Dark dust lanes overlay this nebula giving it the appearance of a burning flame. The blue reflection nebula below and to the left of the Horsehead is NGC2023 with yet another smaller reflection nebula (IC 435) directly below it. Just to the left (north) of the Flame Nebula lie two more blue reflection nebulae – IC 431 and IC 432. The brownish cloudy material seen in this image is interstellar dust. This area is one of the most photographed areas in the night sky.

Exposure: William Optics Star71 f/4.9 (348mm), Atik 460EX. Ha:L:RGB 6 x 1200sec: 7 x 60sec plus 7 x 360sec: 8 x 360sec bin 2x2.

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	Distinct awarded users	Total awarded images
Image of the day
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This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Amateur hosting facility
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Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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	Basic success
Started	...
Astrometry.net job	712077
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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