Caldwell 27 - Crescent Nebula, NGC 6888, Sharpless 105 (Bert Moyaers)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · HD192003 · HD192020 · HD192041 · HD192102 · HD192123 · HD192163 · HD192182 · HD192303 · HD192361 · HD192444 · HD192537 · HD228066 · HD228067 · HD228077 · HD228139 · HD228152 · HD228153 · HD228185 · HD228186 · HD228198 · HD228205 · HD228243 · HD228261 · HD228262 · HD228277 · HD228289 · HD228290 · HD228304 · HD228311 · And 14 more.

Powered byPixInsight

Caldwell 27 - Crescent Nebula, NGC 6888, Sharpless 105

Powered byPixInsight

Caldwell 27 - Crescent Nebula, NGC 6888, Sharpless 105

[EN] The Crescent Nebula is an emission nebula located in the constellation Cygnus at a distance: 5,000 light years. It is a relatively faint object, about 26 light years across. The star responsible for the nebula’s shape and glow is the Wolf-Rayet star WR 136 (HD 192163). The nebula is formed by the star’s fast, powerful stellar wind that collides with the slower wind ejected by the star about 250,000 years ago, when WR 136 expanded to become a red giant. WR 136 will likely end its life in a supernova event within a few hundred thousand years. Its estimated age is about 4.7 million years. The star is 3.3 times larger than the Sun, 15 times more massive and 260,000 times more luminous.

[NL] De Halvemaannevel is een emissienevel in het sterrenbeeld Cygnus op een afstand van 5000 lichtjaar. Het is een relatief zwak object, ongeveer 26 lichtjaar in doorsnede. De ster die verantwoordelijk is voor de vorm en gloed van de nevel is de Wolf-Rayet-ster WR 136 (HD 192163). De nevel wordt gevormd door de snelle, krachtige stellaire wind van de ster die botst met de langzamere wind die ongeveer 250.000 jaar geleden door de ster werd uitgestoten, toen WR 136 uitbreidde tot een rode reus. WR 136 zal waarschijnlijk binnen een paar honderdduizend jaar zijn leven beëindigen in een supernova-gebeurtenis. De geschatte leeftijd is ongeveer 4,7 miljoen jaar. De ster is 3,3 keer groter dan de zon, 15 keer massiever en 260.000 keer helderder.

Catalog - Caldwell
Deep Sky - Supernova & remnant

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
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	5177803
PixInsight job	E9N0XVCJQZOWSYR3BB9C4YXIVI5TH67V
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h12m08s.11
RA (top/left)	20h11m04s.71
RA (top/right)	20h09m21s.80
RA (bottom/right)	20h13m10s.62
RA (bottom/left)	20h14m55s.32

Dec (center)	+38°21′26″.3
Dec (top/left)	+38°54′06″.3
Dec (top/right)	+38°08′57″.8
Dec (bottom/right)	+37°48′43″.10
Dec (bottom/left)	+38°33′39″.5

Image Index:

Contribution Index (beta):

Caldwell 27 - Crescent Nebula, NGC 6888, Sharpless 105

Caldwell 27 - Crescent Nebula, NGC 6888, Sharpless 105

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these collections

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Caldwell 27 - Crescent Nebula, NGC 6888, Sharpless 105

Caldwell 27 - Crescent Nebula, NGC 6888, Sharpless 105

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these collections

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information