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About: GRO J1655-40     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:Star, within Data Space : dbpedia.org associated with source document(s)

Type: Thingplacedbo:Locationschema:Placecelestial bodyyago:WikicatBlackHolesyago:WikicatStellarBlackHolesyago:BlackHole109223177yago:Location100027167yago:Object100002684yago:PhysicalEntity100001930yago:Region108630039yago:YagoGeoEntityyago:YagoLegalActorGeoyago:YagoPermanentlyLocatedEntitystar New Facet based on Instances of this Class

GRO J1655-40 is a binary star consisting of an evolved F-type primary star and a massive, unseen companion, which orbit each other once every 2.6 days in the constellation of Scorpius. Gas from the surface of the visible star is accreted onto the dark companion, which appears to be a stellar black hole with several times the mass of the Sun. The optical companion of this low-mass X-ray binary is a subgiant F star.