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- Arches_Cluster abstract "The Arches Cluster is the densest known star cluster in the Milky Way located about 100 light years from its center, in the constellation Sagittarius. Due to extremely heavy optical extinction by dust in this region, the Arches Cluster is obscured in the visual bands, and is observed in the X-ray, infrared, and radio bands. The radius of the Arches Cluster is approximately one light-year. It contains approximately 150 young, very hot stars that are many times larger and more massive than the Sun. Such stars live for only a few million years before exhausting their hydrogen fuel, due to their extreme luminosity. The cluster also contains hot gas, produced in shocks by collisions among the massive, high-velocity stellar winds flowing outwards from the stars.This star cluster and the Quintuplet cluster, another massive young cluster in the region, are estimated to be two to four million years old. Although possibly larger and denser than the Quintuplet Cluster, it appears to be slightly younger. The most evolved stars are barely edging away from the main sequence while the Quintuplet Cluster includes a number of hot supergiants as well as a red supergiant and the Luminous Blue Variable The Pistol Star.The most massive of their stars are expected to become supernovas, forming neutron stars or black holes, or else be torn apart by tidal forces from the black hole known to lie at the Galactic center.[citation needed]Work by Donald Figer, an astronomer at the Rochester Institute of Technology suggests that 150 solar masses is the upper limit of stars in the current era of the universe. He used the Hubble Space Telescope to observe about a thousand stars in the Arches cluster and found no stars over that limit despite a statistical expectation that there should be several.".
- Arches_Cluster thumbnail ESO-Arches_Cluster.jpg?width=300.
- Arches_Cluster wikiPageExternalLink arches.
- Arches_Cluster wikiPageExternalLink text.
- Arches_Cluster wikiPageExternalLink eso0921a.
- Arches_Cluster wikiPageExternalLink arstarclus.html.
- Arches_Cluster wikiPageID "6855178".
- Arches_Cluster wikiPageRevisionID "585724930".
- Arches_Cluster caption "Arches Cluster of young, massive stars. This image was obtained with NACO adaptive optics system on ESO’s Very Large Telescope.".
- Arches_Cluster constellation Sagittarius_(constellation).
- Arches_Cluster distLy "25.0".
- Arches_Cluster distPc "8.5".
- Arches_Cluster epoch Epoch_(astronomy).
- Arches_Cluster hasPhotoCollection Arches_Cluster.
- Arches_Cluster name "Arches Cluster".
- Arches_Cluster notes "Optically obscured".
- Arches_Cluster subject Category:Objects_within_100_kly_of_Earth.
- Arches_Cluster subject Category:Open_clusters.
- Arches_Cluster subject Category:Sagittarius_(constellation).
- Arches_Cluster type Abstraction100002137.
- Arches_Cluster type Agglomeration107959269.
- Arches_Cluster type Bunch107959943.
- Arches_Cluster type Collection107951464.
- Arches_Cluster type Group100031264.
- Arches_Cluster type OpenClusters.
- Arches_Cluster comment "The Arches Cluster is the densest known star cluster in the Milky Way located about 100 light years from its center, in the constellation Sagittarius. Due to extremely heavy optical extinction by dust in this region, the Arches Cluster is obscured in the visual bands, and is observed in the X-ray, infrared, and radio bands. The radius of the Arches Cluster is approximately one light-year.".
- Arches_Cluster label "Amas des Arches".
- Arches_Cluster label "Ammasso Arches".
- Arches_Cluster label "Arches Cluster".
- Arches_Cluster label "Arches-Sternhaufen".
- Arches_Cluster label "Arches-cluster".
- Arches_Cluster label "Cúmulo Arches".
- Arches_Cluster label "Gromada Arches".
- Arches_Cluster label "Скопление Арки".
- Arches_Cluster label "تجمع أرشز".
- Arches_Cluster label "圓拱星團".
- Arches_Cluster sameAs Arches-Sternhaufen.
- Arches_Cluster sameAs Cúmulo_Arches.
- Arches_Cluster sameAs Amas_des_Arches.
- Arches_Cluster sameAs Ammasso_Arches.
- Arches_Cluster sameAs 아치스_성단.
- Arches_Cluster sameAs Arches-cluster.
- Arches_Cluster sameAs Gromada_Arches.
- Arches_Cluster sameAs m.0gsrqj.
- Arches_Cluster sameAs Q4147.
- Arches_Cluster sameAs Q4147.
- Arches_Cluster sameAs Arches_Cluster.
- Arches_Cluster wasDerivedFrom Arches_Cluster?oldid=585724930.
- Arches_Cluster depiction ESO-Arches_Cluster.jpg.
- Arches_Cluster isPrimaryTopicOf Arches_Cluster.
