190 BC - 120 BC

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Hipparchus (; Greek: Ἵππαρχος, Hipparkhos; c. 190 – c. 120 BC) was a Greek astronomer, geographer, and mathematician. He is considered the founder of trigonometry, but is most famous for his incidental discovery of the precession of the equinoxes. Hipparchus was born in Nicaea, Bithynia, and probably died on the island of Rhodes, Greece. Read more on Wikipedia

Since 2007, the English Wikipedia page of Hipparchus has received more than 1,220,423 page views. His biography is available in 75 different languages on Wikipedia (up from 71 in 2019). Hipparchus is the 13th most popular astronomer (down from 12th in 2019), the 71st most popular biography from Türkiye (down from 69th in 2019) and the most popular Astronomer.

Hipparchus is most famous for his discovery of the precession of the equinoxes.

Memorability Metrics

  • 1.2M

    Page Views (PV)

  • 73.80

    Historical Popularity Index (HPI)

  • 75

    Languages Editions (L)

  • 10.59

    Effective Languages (L*)

  • 3.82

    Coefficient of Variation (CV)

Page views of Hipparchuses by language

Over the past year Hipparchus has had the most page views in the with 159,279 views, followed by Spanish (63,884), and Russian (19,663). In terms of yearly growth of page views the top 3 wikpedia editions are (209.33%), Pashto (156.73%), and Cantonese (120.00%)


Among astronomers, Hipparchus ranks 13 out of 644Before him are Tycho Brahe, William Herschel, Ulugh Beg, Ja'far al-Sadiq, Aristarchus of Samos, and Edwin Hubble. After him are Ole Rømer, Carl Sagan, Aryabhata, Giovanni Domenico Cassini, Abd al-Rahman al-Sufi, and Neil deGrasse Tyson.

Most Popular Astronomers in Wikipedia

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Among people born in 190 BC, Hipparchus ranks 1After him are Menander I, Lucius Mummius Achaicus, Alexander II Zabinas, Servius Sulpicius Galba, Seleucus of Seleucia, Julia, Phraates I, Hypsicles, and Orodes I of Parthia. Among people deceased in 120 BC, Hipparchus ranks 1After him are Mithridates V of Pontus, Hypsicles, and Lucius Coelius Antipater.

Others Born in 190 BC

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Others Deceased in 120 BC

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In Türkiye

Among people born in Türkiye, Hipparchus ranks 71 out of 1,347Before him are Saint Blaise (300), Osman III (1699), Anaximenes of Miletus (-585), Şehzade Mehmed (1522), Mustafa III (1717), and Lucian (120). After him are Herostratus (-301), Orhan Pamuk (1952), Aristotle Onassis (1906), Murad V (1840), Honorius (384), and Alexios I Komnenos (1048).

Among ASTRONOMERS In Türkiye

Among astronomers born in Türkiye, Hipparchus ranks 1After him are Walter Sydney Adams (1876), E. M. Antoniadi (1870), Cleomedes (110), Cleostratus (-520), Janet Akyüz Mattei (1943), Paris Pişmiş (1911), and Dilhan Eryurt (1926).