M76 (Jerome Proust)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: Little Dumbbell · M 76 · NGC 650

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M76

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M76

M76 (ou NGC 650) est une nébuleuse planétaire située dans la constellation de Persée. Elle est également connue sous le nom du Petit Haltère (ou Little Dumbbell), sa forme rappelant celle de la nébuleuse de l'Haltère (M27, aussi connue sous le nom de Dumbbell).

Elle a été découverte par Pierre Méchain le 5 septembre 1780, et Charles Messier l'inclut à son catalogue d'objets diffus le 21 octobre de la même année, après en avoir calculé la position. M76 a reçu deux numéros NGC (NGC 650 et NGC 651), parce qu'on la suspectait à l'époque d'être une nébuleuse double dont les composantes auraient été en contact.

L'étoile à l'origine de cette nébuleuse possède aujourd'hui une magnitude apparente de +16,6, avec une température de surface plutôt élevée de 60 000 K, elle est probablement en train de se refroidir pour devenir à terme une naine blanche d'ici plusieurs milliards d'années.

La distance séparant le système solaire de M76 est très mal connue, les estimations variant selon les sources de 1 700 années-lumière à 15 000 années-lumière.

M76 est l'un des objets les moins lumineux du catalogue Messier.

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	Basic success
Started	...
Astrometry.net job	361634
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Contribution Index (beta):

M76

M76

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