Statements (12)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:person
|
| gptkbp:birthYear |
1874
|
| gptkbp:collaboratedWith |
gptkb:George_Willis_Ritchey
|
| gptkbp:deathYear |
1964
|
| gptkbp:field |
gptkb:optics
telescope design |
| https://www.w3.org/2000/01/rdf-schema#label |
William M. Ritchey
|
| gptkbp:knownFor |
gptkb:Ritchey–Chrétien_telescope
|
| gptkbp:nationality |
gptkb:American
|
| gptkbp:occupation |
astronomer
|
| gptkbp:bfsParent |
gptkb:Jennifer_Holt
|
| gptkbp:bfsLayer |
6
|