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• Hipparchus abstract "Hipparchus of Nicaea (/hɪˈpɑrkəs/; Greek: Ἵππαρχος, Hipparkhos; c. 190 – c. 120 BC), was a Greek astronomer, geographer, and mathematician of the Hellenistic period. He is considered the founder of trigonometry but is most famous for his incidental discovery of precession of the equinoxes.Hipparchus was born in Nicaea, Bithynia (now Iznik, Turkey), and probably died on the island of Rhodes. He is known to have been a working astronomer at least from 162 to 127 BC. Hipparchus is considered the greatest ancient astronomical observer and, by some, the greatest overall astronomer of antiquity. He was the first whose quantitative and accurate models for the motion of the Sun and Moon survive. For this he certainly made use of the observations and perhaps the mathematical techniques accumulated over centuries by the Babylonians and other people from Mesopotamia. He developed trigonometry and constructed trigonometric tables, and he solved several problems of spherical trigonometry. With his solar and lunar theories and his trigonometry, he may have been the first to develop a reliable method to predict solar eclipses. His other reputed achievements include the discovery and measurement of Earth's precession, the compilation of the first comprehensive star catalog of the western world, and possibly the invention of the astrolabe, also of the armillary sphere, which he used during the creation of much of the star catalogue. It would be three centuries before Claudius Ptolemaeus' synthesis of astronomy would supersede the work of Hipparchus.".
• Hipparchus birthDate "-0190".
• Hipparchus birthPlace %C4%B0znik.
• Hipparchus birthYear "-0190".
• Hipparchus deathDate "-0120".
• Hipparchus deathPlace Rhodes.
• Hipparchus deathYear "-0120".
• Hipparchus occupation Astronomer.
• Hipparchus occupation Hipparchus__1.
• Hipparchus thumbnail Hipparchus_by_Raphael.jpg?width=300.
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• Hipparchus wikiPageExternalLink Hipparchus_on_the_Latitude_of_Southern_India.
• Hipparchus wikiPageExternalLink Ptolemys_Latitude_of_Thule_and_the_Map_Projection_in_the_Pre-Ptolemaic_Geography.
• Hipparchus wikiPageExternalLink Hipparchus_Table_of_Climata_and_Ptolemys_Geography.
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• Hipparchus wikiPageExternalLink assocs.pdf.
• Hipparchus wikiPageExternalLink acerbipub5.pdf.
• Hipparchus wikiPageExternalLink Eratosthenes_Parallel_of_Rhodes_and_the_History_of_the_System_of_Climata.
• Hipparchus wikiPageExternalLink Artigo_os_eclipses.htm.
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• Hipparchus wikiPageID "13600".
• Hipparchus wikiPageRevisionID "605638589".
• Hipparchus birthDate "c. 190 BC".
• Hipparchus birthPlace %C4%B0znik.
• Hipparchus dateOfBirth "c. 190 BC".
• Hipparchus dateOfDeath "c. 120 BC".
• Hipparchus deathDate "c. 120 BC".
• Hipparchus deathPlace Rhodes.
• Hipparchus hasPhotoCollection Hipparchus.
• Hipparchus name "Hipparchus".
• Hipparchus occupation Astronomer.
• Hipparchus occupation Geographer.
• Hipparchus occupation Mathematician.
• Hipparchus placeOfBirth %C4%B0znik.
• Hipparchus placeOfDeath Rhodes.
• Hipparchus shortDescription "Ancient Greek scholar".
• Hipparchus description "Ancient Greek scholar".
• Hipparchus description "Ancient Greek scholar".
• Hipparchus subject Category:120_BC_deaths.
• Hipparchus subject Category:190_BC_births.
• Hipparchus subject Category:2nd-century_BC_Greek_people.
• Hipparchus subject Category:2nd-century_BC_writers.
• Hipparchus subject Category:Ancient_Anatolian_Greeks.
• Hipparchus subject Category:Ancient_Greek_astronomers.
• Hipparchus subject Category:Ancient_Greek_geographers.
• Hipparchus subject Category:Ancient_Greek_mathematicians.
• Hipparchus subject Category:Ancient_Rhodian_scientists.
• Hipparchus subject Category:Scientific_instrument_makers.
• Hipparchus subject Category:İznik.
• Hipparchus type 2nd-centuryBCGreekPeople.
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