Statements (28)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
astronomer
scientific instrument |
| gptkbp:advantage |
compact design
long focal length |
| gptkbp:category |
optical telescopes
reflecting telescopes |
| gptkbp:designer |
astronomer
|
| gptkbp:focusArea |
behind primary mirror
|
| gptkbp:foundIn |
observatories
amateur telescopes |
| https://www.w3.org/2000/01/rdf-schema#label |
Cassegrain telescope
|
| gptkbp:introducedIn |
1672
|
| gptkbp:inventedBy |
gptkb:Laurent_Cassegrain
|
| gptkbp:lightPath |
folded
|
| gptkbp:primaryMirrorDiameter |
paraboloidal
|
| gptkbp:secondaryMirrorShape |
hyperboloidal
|
| gptkbp:usedFor |
gptkb:astronomy
photography imaging observational research |
| gptkbp:uses |
concave primary mirror
convex secondary mirror |
| gptkbp:variant |
gptkb:Dall-Kirkham_telescope
gptkb:Maksutov–Cassegrain_telescope gptkb:Schmidt–Cassegrain_telescope gptkb:Ritchey–Chrétien_telescope |
| gptkbp:bfsParent |
gptkb:astronomer
|
| gptkbp:bfsLayer |
4
|