Hipparchus

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Hipparchus: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Facts

Also Known As	Hipparchos • Hipparchus of Bithynia
Born	İznik • Bithynia
Died After	127 BCE • Rhodes? • Greece
Subjects Of Study	Moon • Sun • ecliptic • geocentric model • inclination • latitude • longitude • precession of the equinoxes • sidereal year • solar parallax • solar year • space motion • spherical triangle • measurement

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Edmond Halley

Edmond Halley

British scientist

al-Battānī

Arab astronomer and mathematician

How did Ptolemy explain retrograde motion?

Ptolemy

Egyptian astronomer, mathematician, and geographer

John Herschel

Sir John Herschel, 1st Baronet

English astronomer

Leonhard Euler

Leonhard Euler

Swiss mathematician

Charles-Eugène Delaunay

French astronomer

Ernest William Brown

British mathematician and astronomer

Eudoxus of Cnidus

Greek mathematician and astronomer

Galileo

Galileo

Italian philosopher, astronomer and mathematician

Friedrich Wilhelm Bessel

Friedrich Wilhelm Bessel

German astronomer

al-Kāshī

Persian astronomer and mathematician

Regiomontanus

German mathematician

Kidinnu

Babylonian astronomer and mathematician

James Gregory.

James Gregory

Scottish mathematician and astronomer

Karl Schwarzschild

Karl Schwarzschild

German astronomer

Benjamin Apthorp Gould

American astronomer

Li Zhizao

Chinese mathematician and astronomer

Johann Lambert, detail of a lithograph by Gottfried Englemann, after a portrait by Pierre-Roch Vigneron

Johann Heinrich Lambert

Swiss-German scientist and philosopher

Sir Harold Spencer Jones.

Sir Harold Spencer Jones

British astronomer

Abū al-Wafāʾ

Persian mathematician

Quiz

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