Concept information
Terme préférentiel
Octants
Définition(s)
- Reflecting navigational instruments used for measuring the altitude of celestial bodies and having an arc of 1/8 of a circle, but due to their reflecting properties can measure up to 90 degrees; invented in the 1730s and used into the 19th century when superseded by sextants [AAT]
Concept(s) générique(s)
Notation
- 121603
Traductions
-
français
URI
http://data.loterre.fr/ark:/67375/JLC-H3CCW1QK-M
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