Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
|
| gptkbp:apparentMagnitude |
5.04
|
| gptkbp:BayerDesignation |
none
|
| gptkbp:catalogue |
gptkb:Henry_Draper_Catalogue
|
| gptkbp:constellation |
gptkb:Andromeda
|
| gptkbp:declination |
+42° 22′ 45″
|
| gptkbp:diameter |
2.2 solar radii
|
| gptkbp:distanceFromEarth |
173 light years
|
| gptkbp:FlamsteedDesignation |
gptkb:21_Andromedae
|
| gptkbp:HDNumber |
gptkb:HD_4273
|
| gptkbp:HIPNumber |
gptkb:HIP_3547
|
| https://www.w3.org/2000/01/rdf-schema#label |
21 Andromedae
|
| gptkbp:luminosity |
40 times solar luminosity
|
| gptkbp:mass |
2.5 solar masses
|
| gptkbp:name |
21 And
|
| gptkbp:parallax |
18.87 mas
|
| gptkbp:radialVelocity |
-7.2 km/s
|
| gptkbp:rightAscension |
00h 44m 43.6s
|
| gptkbp:rotationPeriod |
123 km/s
|
| gptkbp:SimbadID |
21+And
|
| gptkbp:spectralType |
A0V
|
| gptkbp:bfsParent |
gptkb:Alpha_Andromedae
|
| gptkbp:bfsLayer |
7
|