Messier 47 / NGC 2422 & 2423 Open Clusters in Puppis (Ray Caro)

Celestial hemisphere: Southern · Constellation: Puppis (Pup) · Contains: M 47 · NGC 2422 · NGC 2423 · NGC 2425

Messier 47 / NGC 2422 & 2423 Open Clusters in Puppis, Ray Caro

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Messier 47 / NGC 2422 & 2423 Open Clusters in Puppis

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Messier 47 / NGC 2422 & 2423 Open Clusters in Puppis

Messier 47 ou NGC 2422 est un amas ouvert atypique de la constellation de la Poupe. Comme pour M 48, Charles Messier l'inscrivit dans son catalogue avec de mauvaises coordonnées, après sa découverte en 1771. D'autres astronomes dont William Herschel "redécouvrirent" l'amas. Cependant, dans les années 1980, les travaux de Giovanni Battista Hodierna sont révélés et il apparaît alors qu'il est le premier découvreur de cet objet, dès avant 1654.

Distant de 1600 années-lumière de notre système solaire, avec une magnitude apparente de 5,2, et s'étendant sur 30 minutes d'arc, soit un diamètre d'environ 12 années-lumière, Messier 47 est très peu structuré et comprend une cinquantaine d'étoiles bleutées pour la plupart, avec au moins deux géantes rouges.

Dans le même champ de mon image, nous avons NGC 2423, également un amas ouvert, avec une géante rouge répertoriée NGC 2423-3 qui a la particularité d'avoir en orbite une exoplanète plus de 10 fois plus grosse que Jupiter.

AAA : Astronomes et Astrographes Amateurs

Puppis / Poupe

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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.

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Status	Basic success
Started	...
Astrometry.net job	1574978
PixInsight job	n/a
PixInsight queue size	n/a
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Messier 47 / NGC 2422 & 2423 Open Clusters in Puppis

Messier 47 / NGC 2422 & 2423 Open Clusters in Puppis

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Image Index:

Contribution Index (beta):

Messier 47 / NGC 2422 & 2423 Open Clusters in Puppis

Messier 47 / NGC 2422 & 2423 Open Clusters in Puppis

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