Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:open_cluster
astronomer |
| gptkbp:age |
~12.3 billion years
|
| gptkbp:angularSize |
19 arcminutes
|
| gptkbp:apparentMagnitude |
7.42
|
| gptkbp:cataloguedIn |
gptkb:Charles_Messier
|
| gptkbp:catalogueNumber |
gptkb:M55
|
| gptkbp:declination |
-30° 57′ 44″
|
| gptkbp:discoveredBy |
gptkb:Nicolas_Louis_de_Lacaille
|
| gptkbp:discoveredIn |
1752
|
| gptkbp:distanceFromEarth |
17,600 light-years
|
| https://www.w3.org/2000/01/rdf-schema#label |
Messier 55
|
| gptkbp:locatedIn |
gptkb:Sagittarius_constellation
|
| gptkbp:mass |
~269,000 solar masses
|
| gptkbp:metallicity |
[Fe/H] = –1.94
|
| gptkbp:NGCNumber |
gptkb:NGC_6809
|
| gptkbp:otherDesignation |
gptkb:GCl_104
gptkb:NGC_6809 |
| gptkbp:partOf |
gptkb:Milky_Way_galaxy
|
| gptkbp:rightAscension |
19h 39m 59.7s
|
| gptkbp:visibleToNakedEye |
yes
|
| gptkbp:bfsParent |
gptkb:NGC_6809
|
| gptkbp:bfsLayer |
5
|