Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
telescope design
|
| gptkbp:abbreviation |
DK
|
| gptkbp:advantage |
easier to manufacture than classical Cassegrain
off-axis coma |
| gptkbp:commonIn |
observatories
amateur astronomy |
| gptkbp:fieldOfView |
narrow
|
| gptkbp:focusArea |
Cassegrain focus
|
| https://www.w3.org/2000/01/rdf-schema#label |
Dall-Kirkham telescope
|
| gptkbp:introducedIn |
1928
|
| gptkbp:inventedBy |
gptkb:Allan_Kirkham
gptkb:Horace_Dall |
| gptkbp:mirrorCount |
2
|
| gptkbp:primaryMirrorDiameter |
ellipsoidal
|
| gptkbp:relatedTo |
gptkb:Ritchey-Chrétien_telescope
classical Cassegrain telescope |
| gptkbp:secondaryMirrorShape |
spherical
|
| gptkbp:type |
gptkb:Cassegrain_reflector
|
| gptkbp:uses |
gptkb:astronomy
astrophotography |
| gptkbp:bfsParent |
gptkb:Cassegrain_telescope
|
| gptkbp:bfsLayer |
5
|