en.wikipedia.org/wiki/Hipparchus

Hipparchus of Nicaea was a Greek astronomer, geographer, and mathematician. He is ... His other reputed achievements include the discovery and measurement of Earth's precession, the compilation of the first comprehensive star catalog of ...

biography.yourdictionary.com/hipparchus

A general survey of Hipparchus's life and an appreciation of his achievements, along with a detailed study of the fragments of his criticism of Eratosthenes, is in ...

www.thefamouspeople.com/profiles/hipparchus-7480.php

Jun 1, 2016 ... Hipparchus was a Greek astronomer and mathematician. This biography profiles his childhood, life, achievements and timeline.

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

Hipparchus: Nicaea, Bithynia [now Iznik, Turkey] after 127 bc Rhodes? Greek astronomer and mathematician who made fundamental contributions to the ...

www.famous-mathematicians.com/hipparchus

Hipparchus Biography - Early Life and Works Hipparchus, better known as Hipparchos was a Greek mathematician born in 190 BC. Not much is known about ...

www.famousscientists.org/hipparchus

Hipparchus was one of antiquity's greatest scientists. A Greek ... One can only speculate about how many other Ancient Greek achievements are unknown to us .

www.encyclopedia.com/people/history/ancient-history-greece-biographies/hipparchus-astronomer

We drive most of our knowledge of Hipparchus' achievements in astronomy from the Almagest; and although Ptolemy obviously had studied Hipparchus' ...

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 ...

astro.wsu.edu/worthey/astro/html/lec-greeks.html

Sep 11, 2000 ... Hipparchus (c. 194-120 B.C.): The first great observational astronomer compiled a catalog of positions and brightnesses of 1080 stars as well ...