Statements (20)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:open_cluster
|
| gptkbp:age |
about 200 million years
|
| gptkbp:alsoKnownAs |
gptkb:Messier_7
gptkb:M7 |
| gptkbp:angularSize |
80 arcminutes
|
| gptkbp:apparentMagnitude |
3.3
|
| gptkbp:cataloguedIn |
gptkb:Charles_Messier
|
| gptkbp:catalogueNumber |
gptkb:M7
|
| gptkbp:declination |
-34° 49′
|
| gptkbp:discoveredBy |
gptkb:Claudius_Ptolemy
|
| gptkbp:discoveredIn |
2nd century
|
| gptkbp:distanceFromEarth |
about 980 light-years
|
| gptkbp:locatedIn |
constellation Scorpius
|
| gptkbp:rating |
about 80
|
| gptkbp:rightAscension |
17h 53.9m
|
| gptkbp:type |
gptkb:open_cluster
|
| gptkbp:visibleToNakedEye |
yes
|
| gptkbp:bfsParent |
gptkb:Messier_7
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
Ptolemy Cluster
|