M27 (Nébuleuse de l'Haltère) - HOO (Christophe Monnier)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: Dumbbell Nebula · M 27 · NGC 6853 · PK060-03.1

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M27 (Nébuleuse de l'Haltère) - HOO

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M27 (Nébuleuse de l'Haltère) - HOO

La Nébuleuse de l'Haltère (M27), de magnitude 7,4, est une nébuleuse planétaire située dans la constellation du Petit Renard à environ 1 250 années-lumière du système solaire. M27 a été découverte par l'astronome français Charles Messier en 17641. Il s'agit donc d'un nuage de gaz entourant une naine blanche située en son centre. Cette nébuleuse est le fruit de l'expulsion de la matière des couches externes de l'étoile, à l'occasion de la mort de cette dernière. Ce phénomène naturel dans la vie des étoiles peu massives correspond à ce qui arrivera à notre propre Soleil d'ici plusieurs milliards d'années. M27, comme toutes les nébuleuses planétaires, n'est pas figée dans l'espace. Sa taille évolue sans cesse, en rapport avec le souffle de l'expulsion de la matière stellaire. Son âge est estimé entre 4 000 et 5 000 ans.

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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	7358856
PixInsight job	F8BVVVRG18MXPTZZJ4H4L512MRW2P4KW
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h59m36s.160
RA (top/left)	19h58m39s.556
RA (top/right)	19h58m48s.570
RA (bottom/right)	20h00m32s.442
RA (bottom/left)	20h00m24s.416

Dec (center)	+22°42′52″.40
Dec (top/left)	+22°57′07″.33
Dec (top/right)	+22°27′05″.49
Dec (bottom/right)	+22°28′35″.44
Dec (bottom/left)	+22°58′37″.96

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M27 (Nébuleuse de l'Haltère) - HOO

M27 (Nébuleuse de l'Haltère) - HOO

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Contribution Index (beta):

M27 (Nébuleuse de l'Haltère) - HOO

M27 (Nébuleuse de l'Haltère) - HOO

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