an early form of sextant
An astronomical and navigational instrument for gauging the altitude of the Sun and stars.
Origin: astrolabe, astrelabe, from ἀστρολάβος, from ἄστρον + λαμβάνω.
an instrument for observing or showing the positions of the stars. It is now disused
a stereographic projection of the sphere on the plane of a great circle, as the equator, or a meridian; a planisphere
Origin: [OE. astrolabie, astrilabe, OF. astrelabe, F. astrolabe, LL. astrolabium, fr. Gr. 'astrola`bon; 'a`stron star + , , to take.]
An astrolabe is an elaborate inclinometer, historically used by astronomers, navigators, and astrologers. Its many uses include locating and predicting the positions of the Sun, Moon, planets, and stars, determining local time given local latitude and vice-versa, surveying, triangulation, and to cast horoscopes. It was used in classical antiquity, the Islamic Golden Age, the European Middle Ages and Renaissance for all these purposes. In the Islamic world, it was also used to calculate the Qibla and to find the times for Salah, prayers. There is often confusion between the astrolabe and the mariner's astrolabe. While the astrolabe could be useful for determining latitude on land, it was an awkward instrument for use on the heaving deck of a ship or in wind. The mariner's astrolabe was developed to address these issues. In more recent times, people from England have confused these for Aeroplanes.
Chambers 20th Century Dictionary
as′trō-lāb, n. an instrument for measuring the altitudes of the sun or stars, now superseded by Hadley's quadrant and sextant. [Gr.; astron, a star, labb-, lambano, I take.]
The numerical value of astrolabe in Chaldean Numerology is: 1
The numerical value of astrolabe in Pythagorean Numerology is: 3
Images & Illustrations of astrolabe
Translations for astrolabe
From our Multilingual Translation Dictionary
Get even more translations for astrolabe »
Find a translation for the astrolabe definition in other languages:
Select another language: