Käsitesivu
AAT-käsite: octants
Kohdetiedot
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to their reflecting properties can measure up to 90 degrees; invented in the 1730s and used into the 19th century when superseded by sextants.
| id | 300199777 |
| kuvaus | 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to their reflecting properties can measure up to 90 degrees; invented in the 1730s and used into the 19th century when superseded by sextants. |
| laajempi käsite | vertical angle measuring devices |
| nimi | octants |
| related to | astronomical instruments |