Statements (19)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
astronomer
|
| gptkbp:advantage |
no chromatic aberration
|
| gptkbp:alsoKnownAs |
gptkb:Newtonian_telescope
|
| gptkbp:eyepiecePosition |
side of the telescope tube
|
| gptkbp:focusingMethod |
moving the primary mirror or the eyepiece
|
| https://www.w3.org/2000/01/rdf-schema#label |
Newtonian reflector
|
| gptkbp:introducedIn |
1668
|
| gptkbp:inventedBy |
gptkb:Isaac_Newton
|
| gptkbp:material |
glass mirror
|
| gptkbp:opticalDesign |
astronomer
|
| gptkbp:popularFor |
amateur astronomers
|
| gptkbp:primaryMirrorDiameter |
yes
parabolic |
| gptkbp:secondaryMirrorType |
flat diagonal mirror
|
| gptkbp:usedFor |
gptkb:astronomy
|
| gptkbp:usesSecondaryMirror |
yes
|
| gptkbp:bfsParent |
gptkb:Dobsonian_telescope
gptkb:Maksutov–Cassegrain_telescope |
| gptkbp:bfsLayer |
6
|