Alpha Centauri C

URI: https://gptkb.org/entity/Alpha_Centauri_C
GPTKB entity
Statements (29)
Predicate Object
gptkbp:instanceOf gptkb:star
white dwarf
gptkbp:alsoKnownAs gptkb:Proxima_Centauri
gptkbp:apparentMagnitude 11.13
gptkbp:constellation gptkb:Centaurus
gptkbp:declination −62° 40′ 46.141″
gptkbp:diameter 0.1542 solar radii
gptkbp:discoveredBy gptkb:Robert_Innes
gptkbp:discoveredIn 1915
gptkbp:distanceFromEarth 4.24 light-years
gptkbp:hasExoplanet gptkb:Proxima_Centauri_b
gptkb:Proxima_Centauri_c
gptkb:Proxima_Centauri_d
https://www.w3.org/2000/01/rdf-schema#label Alpha Centauri C
gptkbp:luminosity 0.0017 solar luminosities
gptkbp:mass 0.122 solar masses
gptkbp:metallicity −0.01 [Fe/H]
gptkbp:nearestStarToSun true
gptkbp:orbitalPeriodAroundAlphaCentauriAB ~547,000 years
gptkbp:parallax 768.0665 mas
gptkbp:partOf gptkb:Alpha_Centauri_system
gptkbp:properMotionRA +765.54 mas/yr
−3775.64 mas/yr
gptkbp:radialVelocity −22.2 km/s
gptkbp:rightAscension 14h 29m 42.9487s
gptkbp:spectralType M5.5Ve
gptkbp:temperature 3042 K
gptkbp:bfsParent gptkb:Proxima_Centauri
gptkbp:bfsLayer 5