GJ 144

URI: https://gptkb.org/entity/GJ_144
GPTKB entity
Statements (32)
Predicate Object
gptkbp:instanceOf gptkb:star
gptkbp:age 11.5 billion years
gptkbp:alsoKnownAs gptkb:Kapteyn's_Star
gptkbp:apparentMagnitude 8.85
gptkbp:catalogueNumber gptkb:HD_33793
gptkb:HIP_24186
gptkb:LHS_29
2MASS J05055968-0735384
NLTT 15699
gptkbp:constellation gptkb:Pictor
gptkbp:containsPlanet true
gptkbp:declination -45° 01′ 06″
gptkbp:diameter 0.291 solar radii
gptkbp:discoveredBy gptkb:Jacobus_Kapteyn
gptkbp:discoveredIn 1897
gptkbp:distanceFromEarth 12.76 light-years
https://www.w3.org/2000/01/rdf-schema#label GJ 144
gptkbp:luminosity 0.011 solar luminosities
gptkbp:mass 0.281 solar masses
gptkbp:metallicity [Fe/H] = -0.86
gptkbp:notableFor high proper motion
oldest known star with planets
gptkbp:parallax 255.1651 mas
gptkbp:planetCandidate gptkb:Kapteyn_b
gptkb:Kapteyn_c
gptkbp:properMotionRA 8.67 arcsec/year
gptkbp:radialVelocity -245 km/s
gptkbp:rightAscension 05h 05m 06.3s
gptkbp:spectralType sdM1
gptkbp:stellarPopulation halo star
gptkbp:bfsParent gptkb:Eridani
gptkbp:bfsLayer 7