Statements (23)
Predicate | Object |
---|---|
gptkbp:instanceOf |
gptkb:open_cluster
|
gptkbp:age |
~12 billion years
|
gptkbp:alsoKnownAs |
gptkb:NGC_6626
gptkb:Messier_28 |
gptkbp:angularSize |
11.2 arcminutes
|
gptkbp:apparentMagnitude |
7.66
|
gptkbp:catalogue |
gptkb:Caldwell_Catalogue
gptkb:Messier_Catalogue gptkb:NGC_Catalogue |
gptkbp:contains |
gptkb:millisecond_pulsar
|
gptkbp:declination |
-24° 52′ 11.4″
|
gptkbp:discoveredBy |
gptkb:Charles_Messier
|
gptkbp:discoveredIn |
July 27, 1764
|
gptkbp:distanceFromEarth |
18,000 light-years
|
https://www.w3.org/2000/01/rdf-schema#label |
globular cluster M28
|
gptkbp:locatedIn |
gptkb:Milky_Way
gptkb:constellation_Sagittarius |
gptkbp:metallicity |
[Fe/H] = -1.32
|
gptkbp:rating |
~500,000
|
gptkbp:rightAscension |
18h 24m 32.89s
|
gptkbp:type |
Class IV globular cluster
|
gptkbp:bfsParent |
gptkb:PSR-A
|
gptkbp:bfsLayer |
7
|