|
gptkbp:instanceOf
|
gptkb:star
|
|
gptkbp:apparentMagnitude
|
4.84
|
|
gptkbp:catalogue
|
gptkb:HD_110914
gptkb:SAO_44518
gptkb:2MASS_J12450783+4526249
gptkb:BD+46_1881
gptkb:HIP_62145
gptkb:HR_4846
|
|
gptkbp:colorIndexB-V
|
2.98
4.13
|
|
gptkbp:constellation
|
gptkb:Canes_Venatici
|
|
gptkbp:declination
|
+45° 26′ 24.9″
|
|
gptkbp:diameter
|
400 solar radii
|
|
gptkbp:discoveredBy
|
gptkb:Angelo_Secchi
|
|
gptkbp:discoveredIn
|
1860
|
|
gptkbp:distanceFromEarth
|
710 light years
|
|
gptkbp:enveloped
|
circumstellar envelope rich in carbon dust
|
|
gptkbp:evolutionaryStage
|
asymptotic giant branch
|
|
gptkbp:hasInfraredExcess
|
yes
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Y CVn
|
|
gptkbp:luminosity
|
7,000 times Sun
|
|
gptkbp:mass
|
2.0 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] = -0.13
|
|
gptkbp:notableFor
|
one of the brightest carbon stars
|
|
gptkbp:otherName
|
gptkb:La_Superba
|
|
gptkbp:parallax
|
4.59 mas
|
|
gptkbp:properMotionRA
|
-20.13 mas/yr
-13.93 mas/yr
|
|
gptkbp:radialVelocity
|
21.6 km/s
|
|
gptkbp:rightAscension
|
12h 45m 07.83s
|
|
gptkbp:spectralType
|
C-N5.5, C2.4J (carbon star)
|
|
gptkbp:temperature
|
2,800 K
|
|
gptkbp:variableStar
|
gptkb:Y_CVn
|
|
gptkbp:variableType
|
semiregular variable
|
|
gptkbp:bfsParent
|
gptkb:La_Superba
|
|
gptkbp:bfsLayer
|
6
|