Sh2-266 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Orion (Ori) · Contains: PK195-00.1 · Sh2-266

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Sh2-266

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Sh2-266

This obscure object is a small HII emission nebula located 20,000 light years away in the constellation of Orion at a declination of +15 degrees. The nebula spans 1.5 arc-minutes in our apparent view, which corresponds to a diameter of about 8 light years.

This object has understandably been visually mistaken for a planetary nebula in the past. It is likely not a PN for a number of reasons: it is too large in actual size, there is no OIII signal to be found, and strong radiation has been detected in the nebula. The star towards the center of this emission nebula is believed to be creating a strong stellar wind which is shaping this object into a ring. It looks like there may be a small cluster around the main star.

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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	3140438
PixInsight job	PW8W5C5M0V8YQRAO6N5EZUEWGF8LAIWR
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	06h18m45s.381
RA (top/left)	06h18m11s.323
RA (top/right)	06h19m25s.925
RA (bottom/right)	06h19m19s.468
RA (bottom/left)	06h18m04s.809

Dec (center)	+15°16′56″.50
Dec (top/left)	+15°09′31″.18
Dec (top/right)	+15°11′45″.14
Dec (bottom/right)	+15°24′21″.54
Dec (bottom/left)	+15°22′07″.36

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Sh2-266

Sh2-266

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Sh2-266

Sh2-266

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