Statements (28)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
|
| gptkbp:age |
5.3 billion years
|
| gptkbp:apparentMagnitude |
1.33
|
| gptkbp:catalogueNumber |
gptkb:Gliese_559_B
gptkb:HD_128621 gptkb:HR_5460 |
| gptkbp:constellation |
gptkb:Centaurus
|
| gptkbp:declination |
-60° 50′ 02″
|
| gptkbp:diameter |
0.865 solar radii
|
| gptkbp:discoveredBy |
gptkb:John_Herschel
|
| gptkbp:discoveredIn |
1839
|
| gptkbp:distanceFromEarth |
4.37 light-years
|
| gptkbp:eccentricityOfOrbit |
0.5179
|
| gptkbp:hasCompanion |
gptkb:Proxima_Centauri
gptkb:Alpha_Centauri_A |
| https://www.w3.org/2000/01/rdf-schema#label |
K1V (Alpha Centauri B)
|
| gptkbp:luminosity |
0.445 solar luminosities
|
| gptkbp:mass |
0.907 solar masses
|
| gptkbp:metallicity |
+0.23 [Fe/H]
|
| gptkbp:orbitalPeriodWithAlphaCentauriA |
79.91 years
|
| gptkbp:otherName |
gptkb:Alpha_Centauri_B
|
| gptkbp:parallax |
747.17 mas
|
| gptkbp:partOf |
gptkb:Alpha_Centauri_system
|
| gptkbp:rightAscension |
14h 39m 36.5s
|
| gptkbp:spectralType |
K1V
|
| gptkbp:temperature |
5,260 K
|
| gptkbp:bfsParent |
gptkb:Centauri
|
| gptkbp:bfsLayer |
5
|