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- Equatorium abstract "An equatorium (plural, equatoria) is an astronomical calculating instrument. It can be used for finding the positions of the Moon, Sun, and planets without calculation, using a geometrical model to represent the position of a given celestial body.The earliest extant record of a solar equatorium, that is, one to find the position of the sun, is found in Proclus's fifth-century work Hypostasis, where he gives instructions on how to construct one in wood or bronze.Although planetary equatoria were also probably made by the ancient Greeks, the first surviving description of one is from the Libros del saber de astronomia (Books of the knowledge of astronomy), a Castilian compilation of astronomical works collected under the patronage of Alfonso X of Castile in the thirteenth century, which includes translations of two eleventh century Arabic texts on equatoria by Ibn al‐Samḥ and al-Zarqālī. Theorica Planetarum (c. 1261-1264) by Campanus of Novara describes the construction of an equatorium, the earliest known description in Latin Europe.Richard of Wallingford (1292–1336) is known to have built a sophisticated equatorium named Albion in 1326. It could calculate lunar, solar and planetarylongitudes. Unlike most equatoria, the Albion could also predict eclipses.The device is described in a manuscript and in drawings by the Abbot. It consisted of several rotating disks, showing the courses of the sun, moon and stars. These disks were operated manually. It was not a clockwork mechanism.".
- Equatorium thumbnail Äquatorium_01.jpg?width=300.
- Equatorium wikiPageID "6596725".
- Equatorium wikiPageRevisionID "601608750".
- Equatorium hasPhotoCollection Equatorium.
- Equatorium subject Category:Analog_computers.
- Equatorium subject Category:Astronomical_instruments.
- Equatorium subject Category:Historical_scientific_instruments.
- Equatorium subject Category:History_of_astrology.
- Equatorium subject Category:History_of_astronomy.
- Equatorium type AnalogComputer102708224.
- Equatorium type AnalogComputers.
- Equatorium type Artifact100021939.
- Equatorium type AstronomicalInstruments.
- Equatorium type Computer103082979.
- Equatorium type Device103183080.
- Equatorium type HistoricalScientificInstruments.
- Equatorium type Instrument103574816.
- Equatorium type Instrumentality103575240.
- Equatorium type Machine103699975.
- Equatorium type Object100002684.
- Equatorium type PhysicalEntity100001930.
- Equatorium type ScientificInstrument104147495.
- Equatorium type Whole100003553.
- Equatorium comment "An equatorium (plural, equatoria) is an astronomical calculating instrument.".
- Equatorium label "Equatorium".
- Equatorium label "Equatorium".
- Equatorium label "Equatorium".
- Equatorium label "Äquatorium".
- Equatorium label "Équatoire".
- Equatorium label "Экваториум".
- Equatorium label "行星定位儀".
- Equatorium sameAs Äquatorium.
- Equatorium sameAs Equatorium.
- Equatorium sameAs Équatoire.
- Equatorium sameAs Equatorium.
- Equatorium sameAs m.0gd3wf.
- Equatorium sameAs Q255849.
- Equatorium sameAs Q255849.
- Equatorium sameAs Equatorium.
- Equatorium wasDerivedFrom Equatorium?oldid=601608750.
- Equatorium depiction Äquatorium_01.jpg.
- Equatorium isPrimaryTopicOf Equatorium.