Concept information
Terme préférentiel
Danjon astrolabe
Définition(s)
- The Danjon astrolabe is a type of portable solstitial armillary, modified for stellar observation. Suspended by a small hook or eye, the instrument consisted initially of a single ring that hung in a vertical plane. Pivoted at the center of the ring was a rod equal in length to the ring diameter, carrying sights at either end. When aligned on a star or planet, an angular scale inscribed on the armillary ring showed the object's altitude. (Encyclopedia of Science, by David Darling, https://www.daviddarling.info/encyclopedia/A/astrolabe.html)
Concept(s) générique(s)
Traductions
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français
URI
http://data.loterre.fr/ark:/67375/MDL-VHCKQ9RT-Q
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