Origin of astrolabeMiddle English astrelabie from Old French astrelabe from Medieval Latin astrolabium from Classical Greek astrolabon from astron, star + lambanein, to take: see latch
an instrument formerly used to find the altitude of a star, etc.: it was replaced by the sextant
A medieval instrument, now replaced by the sextant, that was once used to determine the altitude of the sun or other celestial bodies.
Origin of astrolabeMiddle English astrelabie from Old French astrelabe from Medieval Latin astrolabium from Greek astrolabon planisphere astro- astro- lambanein lab- to take
An ancient instrument used widely in medieval times by navigators and astronomers to determine latitude, longitude, and time of day. The device employed a disk with 360 degrees marked on its circumference. Users took readings from an indicator that pivoted around the center of the suspended device like the hand of a clock. The astrolabe was replaced by the sextant in the 18th century.
- An astronomical and navigational instrument for gauging the altitude of the Sun and stars.
Middle French astrolabe, Old French astrelabe, from Ancient Greek ἀστρολάβος (astrolabos, “star-taking”), from ἄστρον (astron, “star”) + λαμβάνω (lambanō, “I take”).
- These works are lost; but their titles, combined with expressions in the letters of Synesius, who consulted her about the construction of an astrolabe and a hydroscope, indicate that she devoted herself specially to astronomy and mathematics.
- Chaucer wrote a treatise on the astrolabe; Milton constantly refers to planetary influences; in Shakespeare's King Lear, Gloucester and Edmund represent respectively the old and the new faith.
- He was the author also of a mathematical work on the use of the astrolabe and of a book (Muhit, " the ocean ") on the navigation of the Indian seas.
- Communal dwellings on a much smaller scale occur at Meroka, east of the Astrolabe mountains.
- - Persian Astrolabe (c.1712) Inscribed In Arabic.