Statements (28)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
astronomer
binary star system |
| gptkbp:apparentMagnitude |
12.2
|
| gptkbp:catalogueNumber |
gptkb:1RXS_J161955.0-153825
gptkb:V818_Scorpii |
| gptkbp:component |
white dwarf
low-mass star |
| gptkbp:declination |
-15° 38′ 25.0″
|
| gptkbp:discoveredBy |
Giacconi et al.
|
| gptkbp:discoveredIn |
1962
|
| gptkbp:distanceFromEarth |
9000 light-years
|
| gptkbp:epoch |
gptkb:J2000
|
| https://www.w3.org/2000/01/rdf-schema#label |
Scorpius X-1
|
| gptkbp:locatedIn |
constellation Scorpius
|
| gptkbp:massOfDonorStar |
0.42 solar masses
|
| gptkbp:massOfNeutronStar |
1.4 solar masses
|
| gptkbp:notableFor |
first extrasolar X-ray source discovered
|
| gptkbp:orbitType |
0.787 days
|
| gptkbp:otherName |
gptkb:HD_147888
gptkb:Sco_X-1 gptkb:V818_Sco |
| gptkbp:rightAscension |
16h 19m 55.07s
|
| gptkbp:spectralType |
K-type star (donor)
|
| gptkbp:variableStar |
Z-type X-ray binary
|
| gptkbp:XrayLuminosity |
2.3×10^31 W
|
| gptkbp:bfsParent |
gptkb:X-ray_binaries
gptkb:binary_star_system |
| gptkbp:bfsLayer |
6
|