Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
X-ray binary star system
|
| gptkbp:apparentMagnitude |
14.8
|
| gptkbp:catalogueNumber |
4U 2142+38
|
| gptkbp:component |
white dwarf
A-type subgiant star |
| gptkbp:declination |
+38° 19′ 18″
|
| gptkbp:discoveredBy |
gptkb:Uhuru_satellite
|
| gptkbp:discoveredIn |
1971
|
| gptkbp:distanceFromEarth |
11,400 light-years
|
| gptkbp:hostedBy |
gptkb:Milky_Way
|
| https://www.w3.org/2000/01/rdf-schema#label |
Cygnus X-2
|
| gptkbp:locatedIn |
gptkb:Cygnus
|
| gptkbp:massPrimary |
1.71 solar masses
|
| gptkbp:massSecondary |
0.60 solar masses
|
| gptkbp:notableFor |
strong X-ray emission
|
| gptkbp:orbitType |
9.844 days
|
| gptkbp:otherDesignation |
V1341 Cygni
|
| gptkbp:rightAscension |
21h 44m 41.2s
|
| gptkbp:spectralType |
A9III
|
| gptkbp:variableStar |
Z-type low-mass X-ray binary
|
| gptkbp:XRaySource |
Yes
|
| gptkbp:bfsParent |
gptkb:Constellation_Cygnus
|
| gptkbp:bfsLayer |
7
|