http://dbpedia.org/ontology/abstract
|
Westerlund 1-20 (abbreviated to Wd 1-20 or … Westerlund 1-20 (abbreviated to Wd 1-20 or just W20) is a red supergiant (RSG) located in the Westerlund 1 super star cluster. Its radius was calculated to be around 965 solar radii (6.72 × 108 km, 4.48 au), making it one of the largest stars discovered so far. This corresponds to a volume 899 million times bigger than the Sun. If placed at the center of the Solar System, the photosphere of Westerlund 1-20 would almost reach the orbit of Jupiter. The star is classified as a luminous cool supergiant emitting most of its energy in the infrared spectrum. W20 occupies the upper right corner of the Hertzsprung-Russell diagram. Using the effective temperature of 3,500 K, the bolometric luminosity of 126,000 L☉ and the solar effective temperature of 5,772 K, its radius can be calculated using the Stefan-Boltzmann law. Westerlund 1-20 was observed to have an extended, cometary shaped nebula, similar to the other red supergiant Westerlund 1-26. It is therefore likely that its morphology was affected by either the intracluster medium or the cluster wind of Westerlund 1. The nebulae of both Westerlund 1-20 and Westerlund 1-26 are extended outward from the cluster core and most bright at inward direction, indicating the outward cluster wind.tion, indicating the outward cluster wind.
, Westerlund 1-20 ist ein Roter Überriese im Sternbild Altar. Er ist Teil des offenen Sternhaufens Westerlund 1, in dem noch drei weitere rote Überriesen, Westerlund 1-26, Westerlund 1-75 und Westerlund 1-237 bekannt sind.
|
http://dbpedia.org/ontology/thumbnail
|
http://commons.wikimedia.org/wiki/Special:FilePath/Surprise_Cloud_Around_Vast_Star.jpg?width=300 +
|
http://dbpedia.org/ontology/wikiPageID
|
64101671
|
http://dbpedia.org/ontology/wikiPageLength
|
6061
|
http://dbpedia.org/ontology/wikiPageRevisionID
|
1096486476
|
http://dbpedia.org/ontology/wikiPageWikiLink
|
http://dbpedia.org/resource/Category:Ara_%28constellation%29 +
, http://dbpedia.org/resource/List_of_largest_stars +
, http://dbpedia.org/resource/2MASS +
, http://dbpedia.org/resource/Westerlund_1-75 +
, http://dbpedia.org/resource/Westerlund_1 +
, http://dbpedia.org/resource/Hertzsprung%E2%80%93Russell_diagram +
, http://dbpedia.org/resource/Solar_luminosity +
, http://dbpedia.org/resource/Super_star_cluster +
, http://dbpedia.org/resource/Red_supergiant_star +
, http://dbpedia.org/resource/Solar_radius +
, http://dbpedia.org/resource/Kilometre +
, http://dbpedia.org/resource/Jupiter +
, http://dbpedia.org/resource/Supergiant_star +
, http://dbpedia.org/resource/Solar_System +
, http://dbpedia.org/resource/Red_supergiant +
, http://dbpedia.org/resource/Intracluster_medium +
, http://dbpedia.org/resource/Stefan%E2%80%93Boltzmann_law +
, http://dbpedia.org/resource/Luminosity +
, http://dbpedia.org/resource/Category:M-type_supergiants +
, http://dbpedia.org/resource/Sun +
, http://dbpedia.org/resource/Photosphere +
, http://dbpedia.org/resource/Category:2MASS_objects +
, http://dbpedia.org/resource/Westerlund_1-26 +
, http://dbpedia.org/resource/Westerlund_1-237 +
, http://dbpedia.org/resource/Ara_%28constellation%29 +
, http://dbpedia.org/resource/File:Comparison_of_Radii_of_RSGs_located_in_the_Westerlund_1_star_cluster.png +
, http://dbpedia.org/resource/Infrared +
, http://dbpedia.org/resource/Astronomical_unit +
|
http://dbpedia.org/property/appmag
|
2.61
, 4.381
, 6.378
|
http://dbpedia.org/property/appmag2Passband
|
J
|
http://dbpedia.org/property/appmag3Passband
|
H
|
http://dbpedia.org/property/appmag4Passband
|
K
|
http://dbpedia.org/property/caption
|
Westerlund 1 super star cluster. The location of Wd 1-20 is circled.
|
http://dbpedia.org/property/class
|
M3 - M6I
|
http://dbpedia.org/property/constell
|
http://dbpedia.org/resource/Ara_%28constellation%29 +
|
http://dbpedia.org/property/credit
|
ESO
|
http://dbpedia.org/property/epoch
|
J2000
|
http://dbpedia.org/property/equinox
|
J2000
|
http://dbpedia.org/property/pError
|
0.1073
|
http://dbpedia.org/property/parallax
|
0.169
|
http://dbpedia.org/property/propMoDec
|
−4.041
|
http://dbpedia.org/property/propMoRa
|
−2.478
|
http://dbpedia.org/property/temperature
|
3284
|
http://dbpedia.org/property/type
|
http://dbpedia.org/resource/Red_supergiant_star +
|
http://dbpedia.org/property/wikiPageUsesTemplate
|
http://dbpedia.org/resource/Template:Sky +
, http://dbpedia.org/resource/Template:Short_description +
, http://dbpedia.org/resource/Template:Notelist +
, http://dbpedia.org/resource/Template:Efn +
, http://dbpedia.org/resource/Template:RA +
, http://dbpedia.org/resource/Template:DEC +
, http://dbpedia.org/resource/Template:Location_mark +
, http://dbpedia.org/resource/Template:Starbox_begin +
, http://dbpedia.org/resource/Template:Starbox_catalog +
, http://dbpedia.org/resource/Template:Starbox_astrometry +
, http://dbpedia.org/resource/Template:Starbox_detail +
, http://dbpedia.org/resource/Template:Starbox_image +
, http://dbpedia.org/resource/Template:Starbox_observe +
, http://dbpedia.org/resource/Template:Starbox_end +
, http://dbpedia.org/resource/Template:Starbox_character +
, http://dbpedia.org/resource/Template:Starbox_reference +
, http://dbpedia.org/resource/Template:Stars_of_Ara +
, http://dbpedia.org/resource/Template:Val +
, http://dbpedia.org/resource/Template:Reflist +
|
http://purl.org/dc/terms/subject
|
http://dbpedia.org/resource/Category:Ara_%28constellation%29 +
, http://dbpedia.org/resource/Category:2MASS_objects +
, http://dbpedia.org/resource/Category:M-type_supergiants +
|
http://www.w3.org/ns/prov#wasDerivedFrom
|
http://en.wikipedia.org/wiki/Westerlund_1-20?oldid=1096486476&ns=0 +
|
http://xmlns.com/foaf/0.1/depiction
|
http://commons.wikimedia.org/wiki/Special:FilePath/Comparison_of_Radii_of_RSGs_located_in_the_Westerlund_1_star_cluster.png +
, http://commons.wikimedia.org/wiki/Special:FilePath/Surprise_Cloud_Around_Vast_Star.jpg +
, http://commons.wikimedia.org/wiki/Special:FilePath/Red_circle.svg +
|
http://xmlns.com/foaf/0.1/isPrimaryTopicOf
|
http://en.wikipedia.org/wiki/Westerlund_1-20 +
|
http://xmlns.com/foaf/0.1/name
|
Westerlund 1-20
|
owl:sameAs |
http://de.dbpedia.org/resource/Westerlund_1-20 +
, https://global.dbpedia.org/id/C6YnJ +
, http://dbpedia.org/resource/Westerlund_1-20 +
, http://www.wikidata.org/entity/Q96414528 +
|
rdf:type |
http://dbpedia.org/ontology/CelestialBody +
, http://schema.org/Place +
, http://dbpedia.org/ontology/Star +
, http://dbpedia.org/ontology/Location +
, http://dbpedia.org/ontology/Place +
|
rdfs:comment |
Westerlund 1-20 ist ein Roter Überriese im Sternbild Altar. Er ist Teil des offenen Sternhaufens Westerlund 1, in dem noch drei weitere rote Überriesen, Westerlund 1-26, Westerlund 1-75 und Westerlund 1-237 bekannt sind.
, Westerlund 1-20 (abbreviated to Wd 1-20 or … Westerlund 1-20 (abbreviated to Wd 1-20 or just W20) is a red supergiant (RSG) located in the Westerlund 1 super star cluster. Its radius was calculated to be around 965 solar radii (6.72 × 108 km, 4.48 au), making it one of the largest stars discovered so far. This corresponds to a volume 899 million times bigger than the Sun. If placed at the center of the Solar System, the photosphere of Westerlund 1-20 would almost reach the orbit of Jupiter.0 would almost reach the orbit of Jupiter.
|
rdfs:label |
Westerlund 1-20
|