Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
|
| gptkbp:apparentMagnitude |
3.23
|
| gptkbp:catalogueNumber |
gptkb:HR_8238
gptkb:HD_205021 gptkb:HIP_106032 gptkb:SAO_19702 |
| gptkbp:declination |
+70° 33′ 38″
|
| gptkbp:diameter |
5.6 solar radii
|
| gptkbp:discoveredVariability |
1902
|
| gptkbp:distanceFromEarth |
690 light years
|
| gptkbp:locatedIn |
gptkb:constellation_Cepheus
|
| gptkbp:luminosity |
15,100 times Sun
|
| gptkbp:mass |
7.4 solar masses
|
| gptkbp:name |
gptkb:Alfirk
|
| gptkbp:parallax |
4.74 mas
|
| gptkbp:partOf |
gptkb:Beta_Cephei_system
|
| gptkbp:rightAscension |
21h 28m 39.6s
|
| gptkbp:spectralType |
B2IIIev
|
| gptkbp:temperature |
26,800 K
|
| gptkbp:variableType |
gptkb:Beta_Cephei_variable
|
| gptkbp:bfsParent |
gptkb:Beta_Cephei_B
|
| gptkbp:bfsLayer |
8
|
| http://www.w3.org/2000/01/rdf-schema#label |
Beta Cephei A
|