aerial telescope
Sign in to savevery long focal length refracting telescope without a tube, built in the 17th century; the objective was mounted on a pole, tree, etc. on a swivel ball-joint; the observer stood on the ground and maneuvered the eyepiece to aim at celestial objects
Wikidata facts
- Subclass of
- refracting telescope
- Image
- Huygens Aerial telescope, 1684.jpg
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- Commons category
- Aerial telescopes
Sources (1)
via Wikidata · CC0