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- Triquetrum_(astronomy) abstract "The triquetrum (derived from the Latin tri- ["three"] and quetrum ["cornered"]) was the medieval name for an ancient astronomical instrument first described by Ptolemy (c. 90–c. 168) in the Almagest (V. 12). Also known as Parallactic Rulers, it was used for determining altitudes of heavenly bodies. Ptolemy calls it a "parallactic instrument" and seems to have used it to determine the zenith distance and parallax of the Moon.".
- Triquetrum_(astronomy) thumbnail Dreistab_00.jpg?width=300.
- Triquetrum_(astronomy) wikiPageID "1731800".
- Triquetrum_(astronomy) wikiPageRevisionID "551862429".
- Triquetrum_(astronomy) hasPhotoCollection Triquetrum_(astronomy).
- Triquetrum_(astronomy) subject Category:Ancient_Greek_astronomy.
- Triquetrum_(astronomy) subject Category:Astrometry.
- Triquetrum_(astronomy) subject Category:Astronomical_instruments.
- Triquetrum_(astronomy) subject Category:Historical_scientific_instruments.
- Triquetrum_(astronomy) subject Category:History_of_astronomy.
- Triquetrum_(astronomy) type Artifact100021939.
- Triquetrum_(astronomy) type AstronomicalInstruments.
- Triquetrum_(astronomy) type Device103183080.
- Triquetrum_(astronomy) type HistoricalScientificInstruments.
- Triquetrum_(astronomy) type Instrument103574816.
- Triquetrum_(astronomy) type Instrumentality103575240.
- Triquetrum_(astronomy) type Object100002684.
- Triquetrum_(astronomy) type PhysicalEntity100001930.
- Triquetrum_(astronomy) type ScientificInstrument104147495.
- Triquetrum_(astronomy) type Whole100003553.
- Triquetrum_(astronomy) comment "The triquetrum (derived from the Latin tri- ["three"] and quetrum ["cornered"]) was the medieval name for an ancient astronomical instrument first described by Ptolemy (c. 90–c. 168) in the Almagest (V. 12). Also known as Parallactic Rulers, it was used for determining altitudes of heavenly bodies. Ptolemy calls it a "parallactic instrument" and seems to have used it to determine the zenith distance and parallax of the Moon.".
- Triquetrum_(astronomy) label "Dreistab".
- Triquetrum_(astronomy) label "Triquetrum (astronomia)".
- Triquetrum_(astronomy) label "Triquetrum (astronomy)".
- Triquetrum_(astronomy) label "Triquetrum".
- Triquetrum_(astronomy) label "Triquetrum".
- Triquetrum_(astronomy) label "Трикветрум".
- Triquetrum_(astronomy) sameAs Dreistab.
- Triquetrum_(astronomy) sameAs Triquetrum.
- Triquetrum_(astronomy) sameAs Triquetrum.
- Triquetrum_(astronomy) sameAs Triquetrum_(astronomia).
- Triquetrum_(astronomy) sameAs m.05rvh4.
- Triquetrum_(astronomy) sameAs Q1258152.
- Triquetrum_(astronomy) sameAs Q1258152.
- Triquetrum_(astronomy) sameAs Triquetrum_(astronomy).
- Triquetrum_(astronomy) wasDerivedFrom Triquetrum_(astronomy)?oldid=551862429.
- Triquetrum_(astronomy) depiction Dreistab_00.jpg.
- Triquetrum_(astronomy) isPrimaryTopicOf Triquetrum_(astronomy).
