Statements (14)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:star
|
| gptkbp:age |
approximately 220 million years
|
| gptkbp:apparent_magnitude |
5.9
|
| gptkbp:contains_star |
thousands of stars
|
| gptkbp:declination |
-23° 10′ 00″
|
| gptkbp:discovered_by |
gptkb:William_Herschel
|
| gptkbp:discovery_year |
gptkb:1764
|
| gptkbp:distance_from_earth |
approximately 5,000 light years
|
| https://www.w3.org/2000/01/rdf-schema#label |
M21
|
| gptkbp:located_in |
gptkb:Sagittarius_constellation
|
| gptkbp:right_ascension |
18h 03m 30s
|
| gptkbp:type |
gptkb:open_cluster
|
| gptkbp:bfsParent |
gptkb:Magic:_The_Gathering
|
| gptkbp:bfsLayer |
4
|