HD 155555 triple star system

URI: https://gptkb.org/entity/HD_155555_triple_star_system
GPTKB entity
Statements (28)
Predicate Object
gptkbp:instanceOf binary star system
gptkbp:age about 18 million years
gptkbp:apparentMagnitude 6.99
gptkbp:component gptkb:HD_155555_A
gptkb:HD_155555_B
gptkb:HD_155555_C
gptkbp:declination -66° 57′ 03″
gptkbp:discoveredBy gptkb:John_Herschel
gptkbp:discoveredIn 1834
gptkbp:distanceFromEarth about 100 light-years
https://www.w3.org/2000/01/rdf-schema#label HD 155555 triple star system
gptkbp:locatedIn gptkb:constellation_Ara
gptkbp:luminosity about 2.5 solar luminosities (primary)
gptkbp:mainStar gptkb:HD_155555_A
gptkbp:mass about 2.2 solar masses (total)
gptkbp:memberOf gptkb:Beta_Pictoris_moving_group
gptkbp:metallicity near solar
gptkbp:otherName gptkb:V824_Arae
gptkbp:parallax 32.62 mas
gptkbp:radialVelocity -1.5 km/s
gptkbp:rightAscension 17h 17m 25.5s
gptkbp:secondaryStar gptkb:HD_155555_B
gptkbp:spectralType G5IV (primary)
K0IV (secondary)
gptkbp:tertiaryStar gptkb:HD_155555_C
gptkbp:variableStar variable star
gptkbp:bfsParent gptkb:HD_155555C
gptkbp:bfsLayer 7