4U 1820-30

GPTKB entity

Statements (17)
Predicate Object
gptkbp:instanceOf binary star system
gptkbp:alternativeName V2134 Sagittarii
gptkbp:apparentMagnitude 15.7
gptkbp:catalogue 4U (Uhuru) X-ray source catalogue
gptkbp:component white dwarf
gptkbp:constellation gptkb:Sagittarius
gptkbp:discoveredBy gptkb:Uhuru_satellite
gptkbp:discoveredIn 1974
gptkbp:distanceFromEarth about 16,000 light-years
gptkbp:groupCluster gptkb:NGC_6624
https://www.w3.org/2000/01/rdf-schema#label 4U 1820-30
gptkbp:locatedIn gptkb:NGC_6624
gptkbp:notableFor shortest known orbital period for a binary containing a neutron star
gptkbp:orbitType 685 seconds
gptkbp:type ultracompact X-ray binary
gptkbp:bfsParent gptkb:NGC_6624
gptkbp:bfsLayer 7