|
gptkbp:instanceOf
|
gptkb:star
|
|
gptkbp:age
|
about 2.5 billion years
|
|
gptkbp:apparentMagnitude
|
9.37
|
|
gptkbp:binarySystem
|
yes
|
|
gptkbp:catalogue
|
gptkb:Henry_Draper_Catalogue
gptkb:Hipparcos_Catalogue
gptkb:Bright_Star_Catalogue
|
|
gptkbp:constellation
|
gptkb:cancer
|
|
gptkbp:declination
|
+20° 26′ 28″
|
|
gptkbp:diameter
|
1.2 solar radii
|
|
gptkbp:distanceFromEarth
|
about 300 light years
|
|
gptkbp:hasCompanion
|
BD+20 2288
|
|
gptkbp:luminosity
|
1.5 solar luminosities
|
|
gptkbp:mass
|
1.1 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] = -0.01
|
|
gptkbp:otherDesignation
|
HD 72945
HIP 42172
SAO 80399
HR 3391
LTT 12313
|
|
gptkbp:parallax
|
10.89 mas
|
|
gptkbp:properMotionRA
|
-110.13 mas/yr
-49.13 mas/yr
|
|
gptkbp:radialVelocity
|
-1.6 km/s
|
|
gptkbp:rightAscension
|
08h 36m 51.5s
|
|
gptkbp:rotationPeriod
|
6.5 km/s
|
|
gptkbp:separationFromCompanion
|
about 5 arcseconds
|
|
gptkbp:spectralType
|
G0V
|
|
gptkbp:surfaceGravity
|
4.35 (cgs)
|
|
gptkbp:temperature
|
6000 K
|
|
gptkbp:bfsParent
|
gptkb:HIP_40348
|
|
gptkbp:bfsLayer
|
8
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
BD+20 2287
|