HD 128620C (Proxima Centauri)

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:star
gptkbp:age	4.85 billion years
gptkbp:apparentMagnitude	11.13 15.60
gptkbp:catalogueNumber	gptkb:2MASS_J14294291-6240465 gptkb:GJ_551 gptkb:HIP_70890 gptkb:LHS_49
gptkbp:closestStarToSun	true
gptkbp:constellation	gptkb:Centaurus
gptkbp:containsPlanet	gptkb:Proxima_Centauri_b gptkb:Proxima_Centauri_c gptkb:Proxima_Centauri_d
gptkbp:declination	-62° 40′ 46.141″
gptkbp:diameter	0.1542 solar radii
gptkbp:discoveredBy	gptkb:Robert_Innes
gptkbp:discoveredIn	1915
gptkbp:distanceFromEarth	4.2465 light-years
gptkbp:galacticLatitude	-1.98 degrees 313.92 degrees
gptkbp:hasFlareActivity	true
https://www.w3.org/2000/01/rdf-schema#label	HD 128620C (Proxima Centauri)
gptkbp:isBoundTo	gptkb:Alpha_Centauri_AB
gptkbp:isMainSequence	true
gptkbp:isRedDwarf	true
gptkbp:luminosity	0.0017 solar luminosities
gptkbp:mass	0.1221 solar masses
gptkbp:metallicity	-0.01 [Fe/H]
gptkbp:orbitalPeriodAroundAlphaCentauriAB	~547,000 years
gptkbp:otherName	gptkb:Proxima_Centauri gptkb:Alpha_Centauri_C
gptkbp:parallax	768.0665 mas
gptkbp:partOf	gptkb:Alpha_Centauri_triple_star_system
gptkbp:properMotionRA	3775.64 mas/yr
gptkbp:radialVelocity	-22.2 km/s
gptkbp:rightAscension	14h 29m 42.9487s
gptkbp:rotationPeriod	83.5 days
gptkbp:solarNeighborhood	true
gptkbp:spectralType	M5.5Ve
gptkbp:temperature	3042 K
gptkbp:variableType	gptkb:star
gptkbp:bfsParent	gptkb:Alpha_Centauri
gptkbp:bfsLayer	6