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en.wikipedia.org/wiki/Hipparchus

Hipparchus of Nicaea was a Greek astronomer, geographer, and mathematician. He is considered the founder of trigonometry but is most famous for his ...

www-groups.dcs.st-and.ac.uk/history/Biographies/Hipparchus.html

Little is known of Hipparchus's life, but he is known to have been born in Nicaea in Bithynia. The town of Nicaea is now called Iznik and is situated in ...

www.britannica.com/biography/Hipparchus-Greek-astronomer

Hipparchus, also spelled Hipparchos (born , Nicaea, Bithynia [now Iznik, Turkey] —died after 127 bc , Rhodes?), Greek astronomer and mathematician who ...

www.sites.hps.cam.ac.uk/starry/hipparchus.html

Hipparchus was born in Nicaea in Bithynia, but spent much of his life in Rhodes. He is generally considered to be one of the most influential astronomers of ...

abyss.uoregon.edu/~js/glossary/hipparchus.html

Hipparchus of Rhodes: Hipparchus, (b. Nicaea, Bithynia--d. after 127 BC, Rhodes?), Greek astronomer and mathematician who discovered the precession of the ...

www.myastrologybook.com/Hipparchus-Hipparchos-of-Rhodes-astronomer.htm

Hipparchos/Hipparchus of Rhodes, ancient Greek astronomer, invented trigonometry, calculated distance and sizes of Sun and Moon and length of year.

www.newworldencyclopedia.org/entry/Hipparchus_(astronomer)

Feb 24, 2014 ... There is a strong tradition that Hipparchus was born in Nicaea (Greek Νικαία), in the ancient district of Bithynia (modern-day Iznik in province ...

www2.stetson.edu/~efriedma/periodictable/html/Hs.html

Little is known of Hipparchus's life, but he is known to have been born in Nicaea in Bithynia. Only one work by Hipparchus has survived, and this is certainly not ...

www.ancient.eu/Hipparchus_of_Nicea

Apr 2, 2013 ... Hipparchus of Nicea (190 BCE - 120 BCE) was an ancient Greek mathematician, astronomer and geographer, regarded by many historians as ...