V257 Carinae

GPTKB entity

Statements (29)
Predicate Object
gptkbp:instanceOf gptkb:star
variable star
gptkbp:apparentMagnitude 4.59
-2.94
gptkbp:constellation gptkb:Carina
gptkbp:declination -59° 14′ 04″
gptkbp:diameter 5.6 solar radii
gptkbp:discoveredBy variable star designation assigned in 1975
gptkbp:distanceFromEarth 1,200 light years
https://www.w3.org/2000/01/rdf-schema#label V257 Carinae
gptkbp:luminosity 3,200 times Sun
gptkbp:mass 8.4 solar masses
gptkbp:metallicity -0.13 [Fe/H]
gptkbp:otherDesignation CD-59 2600
HD 79658
HIP 45168
HR 3663
SAO 236442
gptkbp:parallax 2.67 mas
0.16 mas
gptkbp:properMotionRA +8.13 mas/yr
-14.13 mas/yr
gptkbp:rightAscension 09h 11m 39.1s
gptkbp:rotationPeriod 70 km/s
gptkbp:spectralType B2IV
gptkbp:temperature 21,150 K
gptkbp:variableType gptkb:Beta_Cephei_variable
gptkbp:bfsParent gptkb:Carina
gptkbp:bfsLayer 6