Statements (24)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:telescope_design
|
| gptkbp:advantage |
reduced optical aberrations
difficult to manufacture |
| gptkbp:commonIn |
amateur astronomy
professional astronomy |
| gptkbp:feature |
wide field of view
eliminates coma |
| gptkbp:fieldCorrected |
astigmatism and field curvature remain
|
| gptkbp:introducedIn |
1910
|
| gptkbp:inventedBy |
gptkb:George_Willis_Ritchey
gptkb:Henri_Chrétien |
| gptkbp:mirrorCount |
two
|
| gptkbp:primaryMirrorDiameter |
hyperbolic
|
| gptkbp:secondaryMirrorShape |
hyperbolic
|
| gptkbp:type |
gptkb:Cassegrain_telescope
|
| gptkbp:usedIn |
gptkb:Gemini_Observatory
gptkb:Keck_Observatory gptkb:Very_Large_Telescope gptkb:Hubble_Space_Telescope Subaru Telescope |
| gptkbp:bfsParent |
gptkb:Magellan_II_(Clay)_Telescope
gptkb:Magellan_I_(Baade)_Telescope |
| gptkbp:bfsLayer |
5
|
| http://www.w3.org/2000/01/rdf-schema#label |
Ritchey–Chrétien reflector
|