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The mariner's astrolabe, also called sea astrolabe, was an inclinometer used to determine the latitude of a ship at sea by measuring the sun's noon altitude (declination) or the meridian altitude of a star of known declination. Not an astrolabe proper, the mariner's astrolabe was rather a graduated circle with an alidade used to measure ...
The first known metal astrolabe in Western Europe is the Destombes astrolabe made from brass in the eleventh century in Portugal. [ 27 ] [ 28 ] (p 140) Metal astrolabes avoided the warping that large wooden ones were prone to, allowing the construction of larger and therefore more accurate instruments.
Jost Bürgi and Antonius Eisenhoit: Armillary sphere with astronomical clock, made in 1585 in Kassel, now at Nordiska Museet in Stockholm. An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (on the celestial sphere), consisting of a spherical framework of rings, centered on Earth or the Sun, that represent lines of celestial ...
The French researcher Marcel Destombes founded the astrolabe, and left it as legacy to the Institute of the Arab World of Paris in 1983. The Academy of Sciences of Barcelona asked the astrolabe in loan to the Musée of l'Institut du Monde Arabe, to make a replica, today this replica is on display at the Academy of Sciences in the Ramblas.
The Verona astrolabe is an archaeological discovery unearthed in the vaults of a museum in Verona, Italy. [1] Dating back to the eleventh century, this Islamic astrolabe is one of the oldest examples of its kind and is among the few known to exist worldwide. It appears to have been employed by Muslim, Jewish, and Christian communities spanning ...
The Astrolabe Company (German: Astrolabe-Compagnie) was a German "colonial society" (Kolonialgesellschaft) in Kaiser-Wilhelmsland, which existed from 1891 to 1896. On 27 October 1891 it was founded with a capital of 2.4 million marks. Involved were Hamburg and Bremen notables and the financiers.
The cosmolabe was an ancient astronomical instrument resembling the astrolabe, formerly used for measuring the angles between heavenly bodies. It is also called pantacosm . Jacques Besson also uses this name, or universal instrument , for his invention described in Le cosmolabe (1567), which could be used for astrometry , cartography ...
Astrolabe was originally a horse-transport barge converted into an exploration ship of the French Navy. Originally named Coquille , she is famous for her travels with Jules Dumont d'Urville . The name derives from an early navigational instrument , the astrolabe , a precursor to the sextant .