Statements (35)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
astronomer |
| gptkbp:apparentMagnitude |
2.48
|
| gptkbp:BayerDesignation |
gptkb:Epsilon_Cygni
|
| gptkbp:catalogueNumber |
gptkb:FK5_777
gptkb:HIP_102098 ADS 14073 BD+33 3891 GC 28810 HD 197989 HR 7949 SAO 70327 WDS J19450+3358 |
| gptkbp:component |
binary star system
|
| gptkbp:constellation |
gptkb:Cygnus
|
| gptkbp:declination |
+33° 57′ 36.09″
|
| gptkbp:diameter |
11 solar radii
|
| gptkbp:distanceFromEarth |
72.7 light years
|
| gptkbp:FlamsteedDesignation |
gptkb:52_Cygni
|
| gptkbp:hasCompanion |
Epsilon Cygni B
Epsilon Cygni C |
| https://www.w3.org/2000/01/rdf-schema#label |
Gienah Cygni
|
| gptkbp:luminosity |
62 times solar luminosity
|
| gptkbp:mass |
2.59 solar masses
|
| gptkbp:metallicity |
−0.09
|
| gptkbp:otherName |
gptkb:Epsilon_Cygni
|
| gptkbp:parallax |
44.87 mas
|
| gptkbp:properMotionRA |
+268.39 mas/yr
+33.77 mas/yr |
| gptkbp:rightAscension |
19h 44m 58.478s
|
| gptkbp:spectralType |
K0III
|
| gptkbp:temperature |
4,710 K
|
| gptkbp:variableStar |
no
|
| gptkbp:bfsParent |
gptkb:Cygnus_(constellation)
|
| gptkbp:bfsLayer |
5
|