HD 140283

URI: https://gptkb.org/entity/HD_140283
GPTKB entity
Statements (31)
Predicate Object
gptkbp:instanceOf gptkb:star
gptkbp:age about 14.46 billion years
gptkbp:apparentMagnitude 7.205
gptkbp:catalogue gptkb:Henry_Draper_Catalogue
gptkbp:catalogueNumber gptkb:HD_140283
gptkbp:constellation Libra
gptkbp:diameter 2.2 solar radii
gptkbp:discoveredBy gptkb:Frank_Elmore_Ross
gptkbp:discoveredIn 1912
gptkbp:distanceFromEarth 190 light-years
gptkbp:evolutionaryStage subgiant
gptkbp:heliumContent very low
https://www.w3.org/2000/01/rdf-schema#label HD 140283
gptkbp:location gptkb:Milky_Way_galaxy
gptkbp:luminosity 4.0 solar luminosities
gptkbp:mass 0.8 solar masses
gptkbp:metallicity [Fe/H] = -2.5
gptkbp:notableFor one of the oldest known stars
gptkbp:otherName gptkb:Methuselah_star
gptkbp:parallax 17.15 mas
gptkbp:population gptkb:Population_II
gptkbp:properMotionRA -1115.61 mas/yr
-302.39 mas/yr
gptkbp:radialVelocity -170.6 km/s
gptkbp:spectralType G0IV
gptkbp:temperature 5777 K
gptkbp:bfsParent gptkb:SAO_49941
gptkb:subdwarfs
gptkb:SAO_67174
gptkb:SAO_99144
gptkbp:bfsLayer 7