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  • Hipparchus - Wikipedia
    Hipparchus is considered the greatest ancient astronomical observer and, by some, the greatest overall astronomer of antiquity [4][5] He was the first whose quantitative and accurate models for the motion of the Sun and Moon survive
  • Hipparchus | Biography, Discoveries, Accomplishments, Facts | Britannica
    Hipparchus (born, Nicaea, Bithynia [now Iznik, Turkey]—died after 127 bce, Rhodes?) was a Greek astronomer and mathematician who made fundamental contributions to the advancement of astronomy as a mathematical science and to the foundations of trigonometry
  • Hipparchus of Nicea: Greatest Astronomer of His Time
    Hipparchus of Nicea (l c 190 - c 120 BCE) was a Greek astronomer, geographer, and mathematician regarded as the greatest astronomer of antiquity and one of the greatest of all time
  • Hipparchus - Biography, Facts and Pictures - Famous Scientists
    Hipparchus was one of antiquity’s greatest scientists A Greek mathematician and astronomer, he measured the earth-moon distance accurately, founded the mathematical discipline of trigonometry, and his combinatorics work was unequalled until 1870
  • Hipparchus (astronomer) - New World Encyclopedia
    Hipparchus is recognised as the first mathematician to compile a trigonometry table, which he needed when computing the eccentricity of the orbits of the Moon and Sun
  • Hipparchus - History of Math and Technology
    Hipparchus is widely regarded as the father of trigonometry He was the first to systematically study the relationships between angles and distances in a circle, a fundamental concept in trigonometry
  • Hipparchus - 120 BC) - Biography - MacTutor History of Mathematics
    Hipparchus was a Greek mathematician who compiled an early example of trigonometric tables and gave methods for solving spherical triangles
  • Hipparchus Biography - Life of Greek Astronomer
    Over the course of his life, Hipparchus would be a very accomplished astronomer and mathematician He is believed to have been the founder of trigonometry and, although he made the discovery somewhat by accident, he is credited for revealing the precession of the equinoxes
  • Hipparchus - University of Oregon
    Hipparchus' catalog, completed in 129 BC, listed about 850 stars (not 1,080 as is often stated), the apparent brightnesses of which were specified by a system of six magnitudes similar to that used today
  • Hipparchus | History | Research Starters - EBSCO
    Hipparchus was the greatest astronomer of ancient times He was the founder of trigonometry, which he used to determine the distances from Earth to the moon and sun, and the first to use consistently the idea of latitude and longitude to describe locations on Earth and in the sky





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