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Hipparchus
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Six astronomers, after Gerard Hoet (1692) Earth's axis of rotation Astronomers Monument
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Hipparchus summary
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View of the Andromeda Galaxy (Messier 31, M31).
Astronomy and Space Quiz
Michael Faraday (L) English physicist and chemist (electromagnetism) and John Frederic Daniell (R) British chemist and meteorologist who invented the Daniell cell.
Faces of Science
Equations written on blackboard
Numbers and Mathematics
Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
All About Astronomy
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Galileo spacecraft image of the Moon taken on December 7, 1992. The distinct bright ray crater at the bottom of the image is the Tycho impact basin. The dark areas are lava rock filled impact basins: Oceanus Procellarum (on the left), Mare Imbrium (cont'd
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Hipparchus: Facts & Related Content

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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

Photos

Six astronomers, after Gerard Hoet (1692)
Earth's axis of rotation
Astronomers Monument
See All Images →
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

Related Quizzes and Features

Quiz
View of the Andromeda Galaxy (Messier 31, M31).
Astronomy and Space Quiz
Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
All About Astronomy
Equations written on blackboard
Numbers and Mathematics
Michael Faraday (L) English physicist and chemist (electromagnetism) and John Frederic Daniell (R) British chemist and meteorologist who invented the Daniell cell.
Faces of Science