Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
telescope design
|
| gptkbp:advantage |
reduced off-axis optical errors
|
| gptkbp:application |
astronomer
astrophotography |
| gptkbp:category |
gptkb:Cassegrain_telescope
|
| gptkbp:corrects |
coma
spherical aberration |
| gptkbp:displayType |
astronomer
|
| gptkbp:establishedIn |
1927
|
| gptkbp:fieldOfView |
wide
|
| https://www.w3.org/2000/01/rdf-schema#label |
Ritchey–Chrétien telescope
|
| gptkbp:inventedBy |
gptkb:George_Willis_Ritchey
gptkb:Henri_Chrétien |
| gptkbp:namedAfter |
gptkb:George_Willis_Ritchey
gptkb:Henri_Chrétien |
| gptkbp:primaryMirrorDiameter |
hyperbolic
|
| gptkbp:secondaryMirrorShape |
hyperbolic
|
| gptkbp:usedIn |
gptkb:Gemini_Observatory
gptkb:Keck_Observatory gptkb:Very_Large_Telescope gptkb:Hubble_Space_Telescope |
| gptkbp:bfsParent |
gptkb:astronomer
|
| gptkbp:bfsLayer |
4
|