NGC 6888 - Crescent Nebula (AstroFleetTeam)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · HD192003 · HD192020 · HD192163 · HD192182 · HD192303 · HD192361 · HD228243 · HD228304 · HD228376 · LBN 203 · NGC 6888 · Sh2-105

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NGC 6888 - Crescent Nebula

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NGC 6888 - Crescent Nebula

La nébuleuse du Croissant (NGC 6888) est une nébuleuse en émission située dans la constellation du Cygne, à environ 5 000 années-lumière.

Elle est issue des rapides vents stellaires créés par l'étoile Wolf-Rayet WR 136, qui poussent la matière issue de vents plus lents éjectés par cette même étoile lorsqu'elle était plus jeune et plus petite (de type géante rouge) il y a 400 000 ans.

Un autre nébuleuse créé a partir d'une étoile de Wolf-Rayet se trouve non loin du croissant dans la constellation du Cygne, WR134.

Cette image a été réalisé chez pixelskies, avec notre setup espagnol en 2022, mais nous avions omis jusque là de la poster...
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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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	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
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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	7445301
PixInsight job	4XXR06SPZE11IWP90UNB0EW8ARCY2DB9
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h12m10s.424
RA (top/left)	20h13m15s.796
RA (top/right)	20h10m57s.812
RA (bottom/right)	20h11m05s.253
RA (bottom/left)	20h13m22s.585

Dec (center)	+38°20′21″.44
Dec (top/left)	+38°31′48″.72
Dec (top/right)	+38°30′02″.77
Dec (bottom/right)	+38°08′52″.98
Dec (bottom/left)	+38°10′38″.62

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NGC 6888 - Crescent Nebula

NGC 6888 - Crescent Nebula

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NGC 6888 - Crescent Nebula

NGC 6888 - Crescent Nebula

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