WebbHipparchus, or Hipparchos, (born, Nicaea, Bithynia—died after 127 bc, Rhodes?), Greek astronomer and mathematician. He discovered the precession of the equinoxes ( see equinoxes, precession of the), calculated the length of the year to within 6.5 minutes, compiled the first known star catalog, and made an early formulation of trigonometry. WebbThis is followed by an investigation of a (modern reconstruction of a) table of chords attributed to Hipparchus of Rhodes (second century, BCE), designed to show why and how degree measure works, as well as gently introduce students to the study of trigonometrical functions through an examination of a table of chords in a circle.

Hipparchus of Nicea - World History Encyclopedia

WebbOther scientific work of Hipparchus. The eccenter and epicyclic models sufficed to describe the motion of a body that has a single periodic variation in apparent speed, which so far as Hipparchus knew was the case with the Sun and Moon.According to Ptolemy, Hipparchus was aware that the movements of the planets were too complex to be … WebbGeminus of Rhodes ( Greek: Γεμῖνος ὁ Ῥόδιος ), was a Greek astronomer and mathematician, who flourished in the 1st century BC. An astronomy work of his, the Introduction to the Phenomena, still survives; it was intended as an introductory astronomy book for students. semi attached house

Hipparchus of Rhodes (@Hipparchus_R) Twitter

Webb7 nov. 2014 · Hipparchus was born in Nicaea, Bithynia in 190 BCE His well known work was from 162 to 127 BCE on the Island of Rhodes. Believed to have died in 120 BCE on the Island of Rhodes. To … WebbThe Astronomer Hipparchus of Rhodes. Hipparchus before-mentioned, who can never be sufficiently praised, no one having done more to prove that man is related to the … semi authoritarian countries