Statements (27)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
astronomer |
| gptkbp:age |
455 million years
|
| gptkbp:apparentMagnitude |
0.03
|
| gptkbp:constellation |
gptkb:Lyra
|
| gptkbp:declination |
+38° 47′ 01.2802″
|
| gptkbp:diameter |
2.362 solar radii
|
| gptkbp:discoveredBy |
Friedrich Wilhelm Bessel (parallax)
|
| gptkbp:distanceFromEarth |
25 light years
|
| gptkbp:hasDebrisDisk |
yes
|
| https://www.w3.org/2000/01/rdf-schema#label |
HR 7020
|
| gptkbp:isPoleStar |
yes (for Mars)
|
| gptkbp:luminosity |
40.12 solar luminosities
|
| gptkbp:mass |
2.1 solar masses
|
| gptkbp:metallicity |
-0.5 [Fe/H]
|
| gptkbp:otherName |
gptkb:Vega
gptkb:HD_172167 |
| gptkbp:parallax |
130.23 mas
|
| gptkbp:properMotionRA |
286.23 mas/yr
200.94 mas/yr |
| gptkbp:rightAscension |
18h 36m 56.33635s
|
| gptkbp:rotationPeriod |
21.9 km/s
|
| gptkbp:spectralType |
A0V
|
| gptkbp:temperature |
9602 K
|
| gptkbp:variableType |
gptkb:Delta_Scuti
|
| gptkbp:bfsParent |
gptkb:Delta_Scuti
|
| gptkbp:bfsLayer |
7
|