Statements (25)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:open_cluster
|
| gptkbp:affiliatedWith |
gptkb:Milky_Way_galaxy
|
| gptkbp:alternativeName |
gptkb:C_1207+186
gptkb:GCl_21 |
| gptkbp:angularSize |
4.4 arcminutes
|
| gptkbp:apparentMagnitude |
10.2
|
| gptkbp:catalogue |
gptkb:New_General_Catalogue
|
| gptkbp:coreRadius |
0.24 arcminutes
|
| gptkbp:declination |
+18° 32′ 33″
|
| gptkbp:discoveredBy |
gptkb:William_Herschel
|
| gptkbp:discoveredIn |
March 14, 1784
|
| gptkbp:distanceFromEarth |
about 62,000 light-years
|
| gptkbp:epoch |
gptkb:J2000
|
| gptkbp:locatedIn |
gptkb:constellation_Coma_Berenices
|
| gptkbp:mass |
~80,000 solar masses
|
| gptkbp:metallicity |
[Fe/H] = –1.80
|
| gptkbp:notableFor |
contains RR Lyrae variable stars
relatively low metallicity |
| gptkbp:rightAscension |
12h 10m 06.3s
|
| gptkbp:tidalRadius |
6.3 arcminutes
|
| gptkbp:type |
Class VI globular cluster
|
| gptkbp:bfsParent |
gptkb:constellation_Coma_Berenices
gptkb:Coma_Berenices |
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
NGC 4147
|