Statements (33)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
|
| gptkbp:apparentMagnitude |
2.47
3.21 |
| gptkbp:BayerDesignation |
gptkb:γ_Cephei
|
| gptkbp:catalogueNumber |
gptkb:BD+76_928
gptkb:FK5_885 gptkb:Gliese_892 gptkb:HIP_116727 gptkb:HR_8974 gptkb:SAO_20634 gptkb:HD_222404 |
| gptkbp:constellation |
gptkb:Cepheus
|
| gptkbp:containsPlanet |
yes
|
| gptkbp:declination |
+77° 37′ 56″
|
| gptkbp:diameter |
4.9 solar radii
|
| gptkbp:discoveredExoplanets |
1988
|
| gptkbp:distanceFromEarth |
45 light years
|
| gptkbp:hasExoplanet |
gptkb:Gamma_Cephei_Ab
|
| https://www.w3.org/2000/01/rdf-schema#label |
Alrai
|
| gptkbp:luminosity |
10.6 times Sun
|
| gptkbp:mass |
1.4 solar masses
|
| gptkbp:metallicity |
[Fe/H] = -0.12
|
| gptkbp:otherName |
gptkb:Gamma_Cephei
|
| gptkbp:parallax |
72.69 mas
|
| gptkbp:properMotionRA |
0.66 arcsec/year
|
| gptkbp:radialVelocity |
-12.5 km/s
|
| gptkbp:rightAscension |
23h 39m 20.8s
|
| gptkbp:secondaryStar |
white dwarf
|
| gptkbp:spectralType |
K1III-IV
|
| gptkbp:temperature |
4,800 K
|
| gptkbp:variableStar |
no
|
| gptkbp:bfsParent |
gptkb:Gamma_Cephei
|
| gptkbp:bfsLayer |
6
|