Sh2-140 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: Sh2-140

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Sh2-140

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Sh2-140

This HII hydrogen emission nebula is located about 3000 light years away in the constellation of Cepheus at a declination of +63 degrees. The brightest portion of the nebula seen here is about 9 arc-minutes in our apparent view, which corresponds to a width of about 8 light years.

The image includes a small star cluster (Pismis-Moreno 1) and a hint of blue reflection nebulae. The cloud pillars of the emission nebula are pointed towards the cluster, sculpted by the stellar winds and radiation of the bright stars. A number of Herbig-Haro objects are embedded in the central section of the nebula but are not easily seen in this image.

Images from the EdgeHD Series
Sharpless2 Objects
Unique or Unusal Deep Sky Targets
CMOS Imagers
Cloudy Nights
Schmidt-Cassegrain Telescope (SCT) Imagers
ZWO ASI1600MM/QHY163M
Texas Astronomy

HII-Dominated Nebulae
Sharpless Catalog (200/313)

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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
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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
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Star trails
Northern lights
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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
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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	4141387
PixInsight job	ILGPK7VZRIQWBBJM8SG3XRZBSXZLNQR7
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h19m38s.170
RA (top/left)	22h18m31s.407
RA (top/right)	22h19m11s.125
RA (bottom/right)	22h20m44s.558
RA (bottom/left)	22h20m05s.471

Dec (center)	+63°17′21″.32
Dec (top/left)	+63°22′08″.48
Dec (top/right)	+63°09′00″.19
Dec (bottom/right)	+63°12′32″.27
Dec (bottom/left)	+63°25′42″.60

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