Statements (17)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
astronomer
|
| gptkbp:establishedIn |
mid-19th century
|
| gptkbp:feature |
high image quality
long focal length |
| https://www.w3.org/2000/01/rdf-schema#label |
Cooke refractor
|
| gptkbp:inventedBy |
gptkb:Thomas_Cooke
|
| gptkbp:location |
various observatories worldwide
|
| gptkbp:manufacturer |
gptkb:T._Cooke_&_Sons
|
| gptkbp:material |
glass lenses
|
| gptkbp:namedAfter |
gptkb:Thomas_Cooke
|
| gptkbp:notableExample |
gptkb:36-inch_Great_Refractor_at_Lick_Observatory
|
| gptkbp:opticalDesign |
achromatic doublet
|
| gptkbp:usedBy |
amateur astronomers
professional astronomers |
| gptkbp:usedFor |
astronomer
|
| gptkbp:bfsParent |
gptkb:York_Observatory
|
| gptkbp:bfsLayer |
7
|