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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 (The Archer), 25,000 light-years from Earth. 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. It contains approximately 135 young, very hot stars that are many times larger and more massive than the Sun, plus many thousands of less massive stars.This star cluster is estimated to be around two and a half million years old. Although larger and denser than the nearby 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 three Luminous Blue Variables.Work by Donald Figer, an astronomer at the Rochester Institute of Technology suggests that 150 solar masses (M☉) is the upper limit of stellar mass 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. However, later research demonstrated a very high sensitivity of the calculated star masses upon the extinction laws used for mass derivation, which can affect the upper mass limit by about 30% using different extinction laws (possibly from 150 M☉ to about 100 M☉).".
- 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 wikiPageLength "9074".
- Arches_Cluster wikiPageOutDegree "29".
- Arches_Cluster wikiPageRevisionID "679298333".
- Arches_Cluster wikiPageWikiLink Adaptive_optics.
- Arches_Cluster wikiPageWikiLink Category:Open_clusters.
- Arches_Cluster wikiPageWikiLink Category:Sagittarius_(constellation).
- Arches_Cluster wikiPageWikiLink Category:Wolf–Rayet_stars.
- Arches_Cluster wikiPageWikiLink Donald_Figer.
- Arches_Cluster wikiPageWikiLink ESO.
- Arches_Cluster wikiPageWikiLink Epoch_(astronomy).
- Arches_Cluster wikiPageWikiLink European_Southern_Observatory.
- Arches_Cluster wikiPageWikiLink Extinction_(astronomy).
- Arches_Cluster wikiPageWikiLink Galactic_Center.
- Arches_Cluster wikiPageWikiLink Hubble_Space_Telescope.
- Arches_Cluster wikiPageWikiLink Infrared_astronomy.
- Arches_Cluster wikiPageWikiLink J2000.
- Arches_Cluster wikiPageWikiLink KPC.
- Arches_Cluster wikiPageWikiLink Kpc.
- Arches_Cluster wikiPageWikiLink Light-year.
- Arches_Cluster wikiPageWikiLink Light_years.
- Arches_Cluster wikiPageWikiLink Luminous_Blue_Variable.
- Arches_Cluster wikiPageWikiLink Luminous_blue_variable.
- Arches_Cluster wikiPageWikiLink Quintuplet_Cluster.
- Arches_Cluster wikiPageWikiLink Quintuplet_cluster.
- Arches_Cluster wikiPageWikiLink Radio_astronomy.
- Arches_Cluster wikiPageWikiLink Rochester_Institute_of_Technology.
- Arches_Cluster wikiPageWikiLink Sagittarius_(constellation).
- Arches_Cluster wikiPageWikiLink Solar_mass.
- Arches_Cluster wikiPageWikiLink Solar_masses.
- Arches_Cluster wikiPageWikiLink Star_cluster.
- Arches_Cluster wikiPageWikiLink Supergiant.
- Arches_Cluster wikiPageWikiLink Very_Large_Telescope.
- Arches_Cluster wikiPageWikiLink X-ray_astronomy.
- Arches_Cluster wikiPageWikiLink File:Arches_Cluster_hubble_friday_05292015.jpg.
- Arches_Cluster wikiPageWikiLink File:ESO-Arches_Cluster.jpg.
- Arches_Cluster wikiPageWikiLinkText "Arches Cluster".
- Arches_Cluster wikiPageWikiLinkText "Arches cluster".
- Arches_Cluster wikiPageWikiLinkText "Arches".
- Arches_Cluster wikiPageWikiLinkText "Arches-F1".
- Arches_Cluster wikiPageWikiLinkText "Arches-F14".
- Arches_Cluster wikiPageWikiLinkText "Arches-F2".
- Arches_Cluster wikiPageWikiLinkText "Arches-F3".
- Arches_Cluster wikiPageWikiLinkText "Arches-F6".
- Arches_Cluster wikiPageWikiLinkText "Arches-F7".
- Arches_Cluster wikiPageWikiLinkText "Arches-F8".
- Arches_Cluster wikiPageWikiLinkText "Arches-F9".
- 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 epoch J2000.
- Arches_Cluster hasPhotoCollection Arches_Cluster.
- Arches_Cluster name "Arches Cluster".
- Arches_Cluster notes "Optically obscured".
- Arches_Cluster wikiPageUsesTemplate Template:Infobox_Cluster.
- Arches_Cluster wikiPageUsesTemplate Template:Reflist.
- Arches_Cluster wikiPageUsesTemplate Template:Solar_mass.
- Arches_Cluster wikiPageUsesTemplate Template:Solar_radius.
- Arches_Cluster subject Category:Open_clusters.
- Arches_Cluster subject Category:Sagittarius_(constellation).
- Arches_Cluster subject Category:Wolf–Rayet_stars.
- Arches_Cluster type Article.
- Arches_Cluster type Article.
- 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 (The Archer), 25,000 light-years from Earth. 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.".
- Arches_Cluster label "Arches Cluster".
- Arches_Cluster sameAs تجمع_أرشز.
- Arches_Cluster sameAs Arches-Sternhaufen.
- Arches_Cluster sameAs Cúmulo_Arches.
- Arches_Cluster sameAs خوشه_کمانها.
- Arches_Cluster sameAs Amas_des_Arches.
- Arches_Cluster sameAs Ammasso_Arches.
- Arches_Cluster sameAs 아치스_성단.
- Arches_Cluster sameAs Arches-cluster.
- Arches_Cluster sameAs Archeshopen.
- Arches_Cluster sameAs Gromada_Arches.
- Arches_Cluster sameAs m.0gsrqj.
- Arches_Cluster sameAs Скопление_Арки.
- Arches_Cluster sameAs Arches_kümesi.
- Arches_Cluster sameAs Cụm_sao_Arches.
- Arches_Cluster sameAs Q4147.
- Arches_Cluster sameAs Q4147.
- Arches_Cluster sameAs 圓拱星團.
- Arches_Cluster wasDerivedFrom Arches_Cluster?oldid=679298333.
- Arches_Cluster depiction ESO-Arches_Cluster.jpg.
- Arches_Cluster isPrimaryTopicOf Arches_Cluster.