Horsehead Nebula (David Whelan)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: B33 · Flame Nebula · HD294297 · HD294298 · HD294302 · HD294303 · HD37686 · HD37699 · HD37805 · HD37903 · Horsehead nebula · IC 434 · LBN 953 · LBN 954 · NGC 2023 · Orion B · Sh2-277

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.

This image was acquired from my backyard in the south of Ireland on New Years Day 2023. This is 6.5 hours of full color data using a 10inch Newt and ASI 183mc camera. This is my first attempt and was shot during a pretty full moon so not ideal conditions.

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

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
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
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	6893478
PixInsight job	OO925HHEYT79Z5FEZNKHIOIF7OWASRDF
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h40m57s.374
RA (top/left)	05h39m48s.955
RA (top/right)	05h39m50s.740
RA (bottom/right)	05h42m05s.939
RA (bottom/left)	05h42m03s.939

Dec (center)	-02°27′02″.91
Dec (top/left)	-02°15′57″.80
Dec (top/right)	-02°38′43″.46
Dec (bottom/right)	-02°38′05″.95
Dec (bottom/left)	-02°15′14″.27

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Horsehead Nebula

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Horsehead Nebula

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