Statements (53)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:observatory
|
| gptkbp:bfsLayer |
3
|
| gptkbp:bfsParent |
gptkb:Telescopes
|
| gptkbp:accessories |
filters
eyepieces finderscope barlow lens telescopic mount |
| gptkbp:associated_with |
deep-sky observation
star gazing planetary observation comet observation moon observation exoplanet observation galaxy observation star clusters observation nebula observation solar system observation |
| gptkbp:benefits |
portability
stability ease of use limited tracking ability requires manual pointing |
| gptkbp:characteristics |
low cost
Newtonian simple construction large aperture |
| gptkbp:designed_by |
gptkb:John_Dobson
|
| gptkbp:game_components |
gptkb:military_base
tube focuser primary mirror secondary mirror |
| https://www.w3.org/2000/01/rdf-schema#label |
Dobsonian telescope
|
| gptkbp:influenced |
amateur telescope making
|
| gptkbp:influenced_by |
gptkb:Newtonian_telescope
|
| gptkbp:is_available_in |
various sizes
various designs |
| gptkbp:is_popular_in |
the 20th century
|
| gptkbp:is_used_by |
gptkb:University
gptkb:observatory hobbyists |
| gptkbp:is_used_for |
amateur astronomy
|
| gptkbp:lens_type |
gptkb:altazimuth_mount
|
| gptkbp:maintenance |
requires regular cleaning
requires collimation requires storage protection |
| gptkbp:notable_event |
10-inch Dobsonian
12-inch Dobsonian 16-inch Dobsonian 20-inch Dobsonian 8-inch Dobsonian |
| gptkbp:type |
reflecting telescope
|