Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
gptkb:astronomer |
| gptkbp:apparentMagnitude |
2.45
|
| gptkbp:BayerDesignation |
α Cephei
|
| gptkbp:constellation |
gptkb:Cepheus
|
| gptkbp:declination |
+62° 35′ 08″
|
| gptkbp:diameter |
2.3 solar radii
|
| gptkbp:distanceFromEarth |
49 light years
|
| gptkbp:epoch |
gptkb:J2000
|
| gptkbp:locatedIn |
gptkb:constellation_Cepheus
|
| gptkbp:luminosity |
18 times solar luminosity
|
| gptkbp:mass |
1.74 solar masses
|
| gptkbp:metallicity |
−0.01
|
| gptkbp:otherName |
Alderamin
|
| gptkbp:parallax |
66.50 mas
|
| gptkbp:rightAscension |
21h 18m 34.8s
|
| gptkbp:rotationPeriod |
246 km/s
|
| gptkbp:spectralType |
A7IV-V
|
| gptkbp:temperature |
7,740 K
|
| gptkbp:variableStar |
yes
|
| gptkbp:bfsParent |
gptkb:Céphée
|
| gptkbp:bfsLayer |
7
|
| http://www.w3.org/2000/01/rdf-schema#label |
Alpha Cephei
|