Sh2 232 235 and 231 H-Alpha RGB (Jerry Yesavage)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: PK173+02.1 · PK173+03.1 · Sh2-231 · Sh2-232 · Sh2-235

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Sh2 232 235 and 231 H-Alpha RGB

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Sh2 232 235 and 231 H-Alpha RGB

Sh2 232 is the large central one. 235 is the bright one up and right and 231 is up further and duller.

Best catalog:

http://www.sharplesscatalog.com/sharpless.aspx

See also:

http://galaxymap.org/cat/list/sharpless/232

From galaxymap:

This peculiar belted nebula is ionised by two giant stars: the O9.5 III HD 37737 and an anonymous B0 II class star according to Avedisova.

HD 37737 may be a runaway star and is a close binary with a period of 7.84 days.

Sh 2-231 to Sh 2-235 form a complex of HII regions located together in the Perseus arm in the outer galaxy. This complex may be associated with an old (330 thousand years) supernova remnant, FVW 172.8+1.5.

There is a giant molecular cloud, G174+2.5, containing Sh 2-231, Sh 2-232, Sh 2-233, and Sh 2-235 that is at a distance of about 1800 pc.

Cloudy Nights
SF Bay Area Imagers
Narrowband imaging
Suburban Astrophotography
Sharpless2 Objects

Sharpless2 Objects

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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
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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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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	1342820
PixInsight job	T9Y9C7F8TR007L0OM320CG37YKVF5KLP
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h42m31s.30
RA (top/left)	05h38m44s.60
RA (top/right)	05h38m52s.60
RA (bottom/right)	05h46m11s.23
RA (bottom/left)	05h46m16s.16

Dec (center)	+36°11′46″.0
Dec (top/left)	+37°12′22″.4
Dec (top/right)	+35°10′34″.6
Dec (bottom/right)	+35°10′43″.9
Dec (bottom/left)	+37°12′32″.4

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Sh2 232 235 and 231 H-Alpha RGB

Sh2 232 235 and 231 H-Alpha RGB

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Image Index:

Contribution Index (beta):

Sh2 232 235 and 231 H-Alpha RGB

Sh2 232 235 and 231 H-Alpha RGB

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Acquisition details

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