Mar 2, 2023
Stars of a Cluster
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Stars of a Cluster
Jam-Packed Star Cluster
All that glitters
Globular cluster Messier 92 is one of the brightest globular clusters in the Milky Way, and is visible to the naked eye under good observing conditions. It is very tightly packed with stars, containing some 330 000 stars in total. As is characteristic of globular clusters, the predominant elements within Messier 92 are hydrogen and helium, with only traces of others. It is actually what is known as an Oosterhoff type II (OoII) globular cluster, meaning that it belongs to a group of metal-poor clusters — to astronomers, metals are all elements heavier than hydrogen and helium.
By exploring the composition of globulars like Messier 92, astronomers can figure out how old these clusters are. As well as being bright, Messier 92 is also old, being one of the oldest star clusters in the Milky Way, with an age almost the same as the age of the Universe.
Messier 92, despite the name, was first discovered by astronomer Johann Elert Bode in 1777.
Credit: ESA/Hubble & NASA Acknowledgement: Gilles Chapdelaine Source: http://www.spacetelescope.org/images/potw1449a/
Messier 92
Messier 92 is a globular star cluster located about 25,000 light years away towards the constellation Hercules. It is one of the brightest globular star clusters, as well as one of the oldest star clusters in the Milky Way, and holds about 330,000 stars.
Messier 92 contains mainly hydrogen and helium, a characteristic of globular star clusters. It is an Oosterhoff type II globular cluster, a cluster very poor in metals- elements heavier than hydrogen and helium. The composition of the cluster can help astronomers learn how old it is.
Image from National Geographic, information from ESA.
Messier 92, NASA
Imagen Primero | El Hubble capta una impresionante imagen del cúmulo de estrellas Messier 92 >> http://www.imagenprimero.com.ar/el-hubble-capta-una-impresionante-imagen-del-cumulo-de-estrellas-messier-92/ |El Hubble capta una impresionante imagen del cúmulo de estrellas Messier 92. Es una de uno de los grupos de estrellas más viejos y brillantes en la Vía Láctea. Este tipo de conjunto de astros orbita un núcleo galáctico, tal como un satélite. Está localizado en la constelación Hércules y fue descubierto por el astrónomo Johann Elert Bode en 1777. | #Astronomia, #Estrellas, #Hubble, #Messier92, #Telescopio
Imagen Primero | El Hubble capta una impresionante imagen del cúmulo de estrellas Messier 92 >> http://www.imagenprimero.com.ar/el-hubble-capta-una-impresionante-imagen-del-cumulo-de-estrellas-messier-92/
El Hubble capta una impresionante imagen del cúmulo de estrellas Messier 92. Es una de uno de los grupos de estrellas más viejos y brillantes en la Vía Láctea. Este tipo de conjunto de astros orbita un núcleo galáctico, tal como un satélite. Está localizado en la constelación Hércules y fue descubierto por el astrónomo Johann Elert Bode en 1777.
El Hubble capta una impresionante imagen del cúmulo de estrellas Messier 92. Es una de uno de los grupos de estrellas más viejos y brillantes en la Vía Láctea. Este tipo de conjunto de astros orbita un núcleo galáctico, tal como un satélite. Está localizado en la constelación Hércules y fue descubierto por el astrónomo Johann Elert Bode en 1777.
Contiene alrededor de 330.000 estrellas y su estudio sirve para averiguar la edad del Universo. Este cúmulo en particular tiene casi su misma edad. Puedes ver la imagen completa abajo. [vía ESA]
Messier 92