SH2-132 - the Lion Nebula (rado_astro)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: 21 Cep · 21 zet Cep · 22 Cep · 22 lam Cep · 23 Cep · 23 eps Cep · 27 Cep · 27 del Cep · B174 · B369 · HD210013 · HD210128 · HD210220 · HD210322 · HD210414 · HD210628 · HD210855 · HD210886 · HD210905 · HD210922 · HD211070 · HD211336 · HD211430 · HD211472 · HD211489 · HD211554 · HD211564 · HD211643 · HD211774 · HD211820 · And 97 more.

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SH2-132 - the Lion Nebula

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SH2-132 - the Lion Nebula

Sh2-132 is an faint emission nebula located in the constellation of Cepheus. It can be found on the southern edge of the constellation, near the border with Lizard, along the plane of the Milky Way. The best time for observing is between July and December, and it is particularly easy to observe for observers in the northern hemisphere. Sh2-132 is located at a distance of almost 3200 parsecs (about 10400 light-years), placing it within the Perseus Arm, in the region of Cepheus OB1, a large and bright OB association. The stars responsible for ionizing its gases are very hot and massive, in particular, two Wolf-Rayet stars with the codes HD 211564 and HD 211853 (the latter having also the code WR 153), in addition to a star of spectral class O8.5V and about ten B-class stars have been identified. Around the O-class star and one of the Wolf-Rayet stars, an easily visible bubble in the radio wave band extends and is identified as Shell B, probably originating from the stellar wind of the two massive stars. A similar structure, but smaller in size, Shell A, houses a K-class star near its center. It is believed that in the nebula, chain star formation processes have taken place in the past, but currently, there is no trace of recent activity. Nine sources of infrared radiation and a maser with H2O emissions have been identified in the direction of the nebula.

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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	8450913
PixInsight job	YCMCEOLDXSS3BCNKWQITIFLNN1YALCNA
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h18m47s.88
RA (top/left)	22h04m41s.95
RA (top/right)	22h08m16s.16
RA (bottom/right)	22h31m11s.57
RA (bottom/left)	22h30m56s.72

Dec (center)	+57°00′08″.4
Dec (top/left)	+59°24′19″.3
Dec (top/right)	+54°21′06″.1
Dec (bottom/right)	+54°30′19″.2
Dec (bottom/left)	+59°35′24″.3

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SH2-132 - the Lion Nebula

SH2-132 - the Lion Nebula

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SH2-132 - the Lion Nebula

SH2-132 - the Lion Nebula

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