Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
|
| gptkbp:age |
>13 billion years
|
| gptkbp:apparentMagnitude |
9.1
|
| gptkbp:catalogueNumber |
gptkb:BD+44_4407
|
| gptkbp:declination |
+44° 42′ 06.2″
|
| gptkbp:discoveredBy |
Bonner Durchmusterung survey
|
| gptkbp:distanceFromEarth |
~2,000 light-years
|
| https://www.w3.org/2000/01/rdf-schema#label |
BD+44 4407
|
| gptkbp:locatedIn |
constellation Cassiopeia
|
| gptkbp:mass |
0.8 solar masses
|
| gptkbp:metallicity |
[Fe/H] ≈ -4.0
extremely metal-poor |
| gptkbp:notableFor |
one of the most iron-poor stars known
|
| gptkbp:otherDesignation |
G 130-65
|
| gptkbp:radialVelocity |
-150 km/s
|
| gptkbp:rightAscension |
22h 11m 31.37s
|
| gptkbp:spectralType |
subgiant
|
| gptkbp:surfaceGravity |
log(g) ~ 3.4
|
| gptkbp:temperature |
5430 K
|
| gptkbp:type |
Population II star
|
| gptkbp:bfsParent |
gptkb:HD_224014
|
| gptkbp:bfsLayer |
8
|