Nov 6, 2025 · Hipparchus (born, Nicaea, Bithynia [now Iznik, Turkey]—died after 127 bce, Rhodes?) was a Greek astronomer and mathematician who made fundamental contributions …

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 …

Mar 15, 2022 · 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 …

Aug 26, 2016 · Hipparchus was one of antiquity’s greatest scientists. A Greek mathematician and astronomer, he measured the earth-moon distance accurately, founded the mathematical …

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 was a Greek mathematician who compiled an early example of trigonometric tables and gave methods for solving spherical triangles.

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 …

The Greek astronomer Hipparchus (second century B.C) is credited with introducing numerical data from observations into geometric models and discovering the precession of the …

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 …

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 …