Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
red supergiant star |
| gptkbp:alternativeName |
2MASS J18373040-0609166
St2-18 |
| gptkbp:apparentMagnitude |
~17 (V band)
|
| gptkbp:cataloguedIn |
gptkb:SIMBAD
gptkb:2MASS |
| gptkbp:diameter |
approximately 2,150 solar radii
|
| gptkbp:discoveredBy |
Charles Bruce Stephenson
|
| gptkbp:discoveredIn |
1990
|
| gptkbp:distanceFromEarth |
approximately 19,000 light-years
|
| https://www.w3.org/2000/01/rdf-schema#label |
Stephenson 2-18
|
| gptkbp:locatedIn |
gptkb:Milky_Way
constellation Scutum |
| gptkbp:luminosity |
approximately 440,000 times that of the Sun
|
| gptkbp:mass |
estimated 40 solar masses
|
| gptkbp:notableFor |
one of the largest known stars
|
| gptkbp:partOf |
Stephenson 2 star cluster
|
| gptkbp:spectralType |
gptkb:M6
|
| gptkbp:temperature |
~3,200 K
|
| gptkbp:bfsParent |
gptkb:RSGC2_cluster
|
| gptkbp:bfsLayer |
7
|