NGC 7635 Bubble Nebula / M52 / Sh2-157-158-159-161 (Jerry Macon)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 4 Cas · Bubble Nebula · M 52 · NGC 7538 · NGC 7635 · NGC 7654 · PK112-00.1 · Sh2-157 · Sh2-158 · Sh2-159 · Sh2-161 · Sh2-162 · The star 4Cas

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NGC 7635 Bubble Nebula / M52 / Sh2-157-158-159-161

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NGC 7635 Bubble Nebula / M52 / Sh2-157-158-159-161

Lots of lovely objects in this wide field image:

Wikipedia:
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575 (BD+60°2522). The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by William Herschel. The star BD+60°2522 is thought to have a mass of about 44 M.

Messier 52 is a lovely star cluster nearby.
M52 or M52, also known as NGC 7654, is an open cluster of stars in the highly northern constellation of Cassiopeia. It was discovered by Charles Messier on 1774. It can be seen from Earth under a good night sky with binoculars. The brightness of the cluster is influenced by extinction, which is stronger in the southern half.

Includes the following Sharpless2 diffuse nebula objects:
Sh2-157, Sh2-158, Sh2-159, Sh2-161.

My Collections:
Abell Planetary Nebulae (Complete)
Planetary Nebulae
Galaxies
Sharpless 2 Objects

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
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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	4966120
PixInsight job	4L2UHP9UNBP6BBPDG0JP6PI5N1298FUO
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	23h20m39s.90
RA (top/left)	23h28m52s.15
RA (top/right)	23h29m09s.29
RA (bottom/right)	23h11m37s.13
RA (bottom/left)	23h12m55s.85

Dec (center)	+61°12′04″.8
Dec (top/left)	+59°41′48″.6
Dec (top/right)	+62°42′48″.2
Dec (bottom/right)	+62°40′18″.2
Dec (bottom/left)	+59°39′33″.9

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Contribution Index (beta):

NGC 7635 Bubble Nebula / M52 / Sh2-157-158-159-161

NGC 7635 Bubble Nebula / M52 / Sh2-157-158-159-161

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NGC 7635 Bubble Nebula / M52 / Sh2-157-158-159-161

NGC 7635 Bubble Nebula / M52 / Sh2-157-158-159-161

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