Cúmulo abierto M23 Menú de navegación

Objetos MessierObjetos NGCCúmulos abiertos


cúmulo abiertoconstelaciónSagitarioOphiuchusCharles Messier20 de junio1764años luzTierramagnitud




















Cúmulo abierto M23


Messier object 023.jpg


Datos de observación
(Época J2000.0)
Tipo
Cúmulo abierto
Ascensión recta
17 h 57 m 0 s
Declinación
-19° 1′ 0″

Magnitud aparente (V)

6.9
Tamaño aparente (V)

27'
Constelación
Sagitario
Características físicas
Radio
8
Edad estimada
220 millones de años
Otras designaciones

NGC 6494
[editar datos en Wikidata]

M23 (también conocido como NGC 6494) es un cúmulo abierto en la constelación de Sagitario cerca del límite con Ophiuchus, que puede apreciarse con prismáticos. Fue descubierto por Charles Messier el 20 de junio de 1764.


M23 está a una distancia de unos 2.150 años luz desde la Tierra y su radio es de alrededor de 15-20 años luz. Hay unos 150 miembros identificados en este cúmulo, siendo el más brillante de magnitud 9.2.







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