Statements (20)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:open_cluster
|
| gptkbp:alternativeName |
gptkb:NGC_6809
|
| gptkbp:apparentMagnitude |
6.3
|
| gptkbp:catalogue |
gptkb:Messier_Catalogue
gptkb:New_General_Catalogue |
| gptkbp:constellation |
gptkb:Sagittarius
|
| gptkbp:declination |
-30° 57′ 43″
|
| gptkbp:diameter |
~100 light-years
|
| 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 |
M55
|
| gptkbp:mass |
~269,000 solar masses
|
| gptkbp:metallicity |
[Fe/H] = –1.94
|
| gptkbp:notableFeature |
loose concentration of stars
|
| gptkbp:rating |
~100,000
|
| gptkbp:rightAscension |
19h 40m 0.6s
|
| gptkbp:visibleToNakedEye |
yes
|
| gptkbp:bfsParent |
gptkb:M6
|
| gptkbp:bfsLayer |
5
|