Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/WR_20a> ?p ?o }
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- WR_20a abstract "WR20a is a binary star associated with the young, massive cluster Westerlund 2. It was discovered in 2004 to be one of the most massive binary systems known, for which the masses of the components have been accurately measured.Each star in the system has about eighty times the mass of our sun. It is not clear why this system is located away from the center of the cluster. It is possible that the system was formed in the core, but that it was ejected by dynamical interactions.Every 3.6 days the two stars in this system revolve around each other. Although the stars are in very tight orbit, both stars in the system are detached.It is expected that within a million years the two will expand and come into contact. A large nitrogen abundance has been measured on the surface of the stars, about six times the abundance of nitrogen measured in the sun. This nitrogen is probably produced in deeper layers of the star and pushed towards the surface by rotational mixing.A collision between the two winds of the systems has been detected in the visible as well as in X-rays. The X-ray emitting region is quite extended since it does not suffer from any eclipse.".
- WR_20a wikiPageID "46526912".
- WR_20a wikiPageLength "6098".
- WR_20a wikiPageOutDegree "16".
- WR_20a wikiPageRevisionID "700333327".
- WR_20a wikiPageWikiLink 2MASS.
- WR_20a wikiPageWikiLink Binary_star.
- WR_20a wikiPageWikiLink Carina_(constellation).
- WR_20a wikiPageWikiLink Category:2MASS_objects.
- WR_20a wikiPageWikiLink Category:Carina_(constellation).
- WR_20a wikiPageWikiLink Category:Spectroscopic_binaries.
- WR_20a wikiPageWikiLink Category:Wolf–Rayet_stars.
- WR_20a wikiPageWikiLink GEN_(star_catalog).
- WR_20a wikiPageWikiLink Mass.
- WR_20a wikiPageWikiLink Sun.
- WR_20a wikiPageWikiLink THA_(star_catalog).
- WR_20a wikiPageWikiLink UBV_Photoelectric_Photometry_Catalogue.
- WR_20a wikiPageWikiLink Variable_star_designation.
- WR_20a wikiPageWikiLink Westerlund_2.
- WR_20a wikiPageWikiLinkText "WR 20a".
- WR_20a absmagV "−6.49 + −6.49".
- WR_20a appmagV "13.28".
- WR_20a bV "+1.63".
- WR_20a class "O3If*/WN6 + O3If*/WN6".
- WR_20a constell Carina_(constellation).
- WR_20a distLy "20000".
- WR_20a distPc "7900".
- WR_20a eccentricity "0".
- WR_20a epoch "J2000".
- WR_20a gravity "3.8".
- WR_20a k "353.1".
- WR_20a k "362.6".
- WR_20a luminosity "1150000".
- WR_20a mass "81.9".
- WR_20a mass "82.7".
- WR_20a periodUnitless "317520.0".
- WR_20a radius "19.3".
- WR_20a temperature "43000".
- WR_20a uB "+0.29".
- WR_20a variable "Eclipsing".
- WR_20a wikiPageUsesTemplate Template:DEC.
- WR_20a wikiPageUsesTemplate Template:RA.
- WR_20a wikiPageUsesTemplate Template:Reflist.
- WR_20a wikiPageUsesTemplate Template:Solar_radius.
- WR_20a wikiPageUsesTemplate Template:Starbox_astrometry.
- WR_20a wikiPageUsesTemplate Template:Starbox_begin.
- WR_20a wikiPageUsesTemplate Template:Starbox_catalog.
- WR_20a wikiPageUsesTemplate Template:Starbox_character.
- WR_20a wikiPageUsesTemplate Template:Starbox_detail.
- WR_20a wikiPageUsesTemplate Template:Starbox_end.
- WR_20a wikiPageUsesTemplate Template:Starbox_observe.
- WR_20a wikiPageUsesTemplate Template:Starbox_orbit.
- WR_20a wikiPageUsesTemplate Template:Starbox_reference.
- WR_20a wikiPageUsesTemplate Template:Stars_of_Carina.
- WR_20a subject Category:2MASS_objects.
- WR_20a subject Category:Carina_(constellation).
- WR_20a subject Category:Spectroscopic_binaries.
- WR_20a subject Category:Wolf–Rayet_stars.
- WR_20a hypernym Star.
- WR_20a type CelestialBody.
- WR_20a type Place.
- WR_20a type Star.
- WR_20a type Location.
- WR_20a type Place.
- WR_20a type Thing.
- WR_20a comment "WR20a is a binary star associated with the young, massive cluster Westerlund 2. It was discovered in 2004 to be one of the most massive binary systems known, for which the masses of the components have been accurately measured.Each star in the system has about eighty times the mass of our sun. It is not clear why this system is located away from the center of the cluster.".
- WR_20a label "WR 20a".
- WR_20a sameAs Q3564787.
- WR_20a sameAs WR_20a.
- WR_20a sameAs WR_20a.
- WR_20a sameAs WR_20a.
- WR_20a sameAs WR_20a.
- WR_20a sameAs m.0134twg3.
- WR_20a sameAs Q3564787.
- WR_20a wasDerivedFrom WR_20a?oldid=700333327.
- WR_20a isPrimaryTopicOf WR_20a.
- WR_20a name "WR 20a".