Statements (33)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
|
| gptkbp:age |
6.2 billion years
|
| gptkbp:apparentMagnitude |
3.44
|
| gptkbp:catalogueNumber |
gptkb:HD_4614
HIP 3821 BD+57 164 HR 219 SAO 21732 |
| gptkbp:component |
η Cassiopeiae A
η Cassiopeiae B |
| gptkbp:declination |
+57° 48′ 55″
|
| gptkbp:discoveredBy |
gptkb:William_Herschel
|
| gptkbp:discoveredIn |
1779
|
| gptkbp:distanceFromEarth |
19.42 light years
|
| gptkbp:epoch |
gptkb:J2000
|
| https://www.w3.org/2000/01/rdf-schema#label |
η Cassiopeiae
|
| gptkbp:locatedIn |
constellation Cassiopeia
|
| gptkbp:luminosity |
0.06 solar luminosities (B)
1.29 solar luminosities (A) |
| gptkbp:mass |
0.57 solar masses (B)
0.98 solar masses (A) |
| gptkbp:metallicity |
[Fe/H] = -0.28
|
| gptkbp:orbitType |
480 years
|
| gptkbp:otherName |
gptkb:Achird
|
| gptkbp:parallax |
168.01 mas
|
| gptkbp:properMotionRA |
+1,073.99 mas/yr
+1,728.46 mas/yr |
| gptkbp:radialVelocity |
-12.6 km/s
|
| gptkbp:rightAscension |
00h 49m 06.3s
|
| gptkbp:separates |
11.99 arcseconds
|
| gptkbp:spectralType |
G0V
|
| gptkbp:bfsParent |
gptkb:Achird
|
| gptkbp:bfsLayer |
8
|