Statements (26)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
|
| gptkbp:age |
0.5 billion years
|
| gptkbp:apparentMagnitude |
3.20
-0.48 |
| gptkbp:binarySystem |
yes
|
| gptkbp:constellation |
gptkb:Cygnus
|
| gptkbp:declination |
+30° 13′ 37″
|
| gptkbp:diameter |
15 solar radii
|
| gptkbp:discoveredBy |
gptkb:William_Herschel
|
| gptkbp:discoveredIn |
1782
|
| gptkbp:distanceFromEarth |
151 light years
|
| gptkbp:hasCompanion |
white dwarf
|
| https://www.w3.org/2000/01/rdf-schema#label |
ζ Cygni
|
| gptkbp:luminosity |
112 solar luminosities
|
| gptkbp:mass |
3.05 solar masses
|
| gptkbp:metallicity |
-0.21
|
| gptkbp:otherName |
gptkb:Zeta_Cygni
|
| gptkbp:parallax |
21.59 mas
|
| gptkbp:properMotionRA |
-11.16 mas/yr
-0.38 mas/yr |
| gptkbp:rightAscension |
21h 12m 56.2s
|
| gptkbp:spectralType |
G8IIIp
|
| gptkbp:temperature |
4,850 K
|
| gptkbp:variableStar |
no
|
| gptkbp:bfsParent |
gptkb:Zeta_Cygni
|
| gptkbp:bfsLayer |
7
|