ASTRONOMER

Ole Rømer

1644 - 1710

Photo of Ole Rømer

Icon of person Ole Rømer

Ole Christensen Rømer (Danish: [ˈoːlə ˈʁœˀmɐ]; 25 September 1644 – 19 September 1710) was a Danish astronomer who, in 1676, first demonstrated that light travels at a finite speed. Rømer also invented the modern thermometer showing the temperature between two fixed points, namely the points at which water respectively boils and freezes. Rømer made his discovery regarding the speed of light while working at the Royal Observatory in Paris and studying Jupiter's moon Io. Read more on Wikipedia

Since 2007, the English Wikipedia page of Ole Rømer has received more than 401,503 page views. His biography is available in 74 different languages on Wikipedia (up from 70 in 2019). Ole Rømer is the 14th most popular astronomer (down from 13th in 2019), the 18th most popular biography from Denmark (down from 9th in 2019) and the most popular Danish Astronomer.

Ole Rømer was a Danish astronomer who is most famous for calculating the speed of light.

Memorability Metrics

  • 400k

    Page Views (PV)

  • 72.66

    Historical Popularity Index (HPI)

  • 74

    Languages Editions (L)

  • 14.94

    Effective Languages (L*)

  • 3.00

    Coefficient of Variation (CV)

Among ASTRONOMERS

Among astronomers, Ole Rømer ranks 14 out of 644. Before him are William Herschel, Ulugh Beg, Ja'far al-Sadiq, Aristarchus of Samos, Edwin Hubble, and Hipparchus. After him are Carl Sagan, Aryabhata, Giovanni Domenico Cassini, Abd al-Rahman al-Sufi, Neil deGrasse Tyson, and Charles Messier.

Most Popular Astronomers in Wikipedia

Go to all Rankings
Load previousLoad previous

Contemporaries

Among people born in 1644, Ole Rømer ranks 3. Before him are Antonio Stradivari, and Matsuo Bashō. After him are Henrietta of England, Louise de La Vallière, Heinrich Ignaz Franz Biber, Galdan Boshugtu Khan, Jakob Ammann, Marie Jeanne Baptiste of Savoy-Nemours, Louis-François de Boufflers, François de Neufville, duc de Villeroy, and Amcazade Köprülü Hüseyin Pasha. Among people deceased in 1710, Ole Rømer ranks 1. After him are Louise de La Vallière, Emperor Higashiyama, Hennig Brand, Bernardo Pasquini, Louis, Prince of Condé, Gaspar Sanz, Duchess Charlotte Felicitas of Brunswick-Lüneburg, Henry, Duke of Saxe-Römhild, and Gottfried Kirch.

Others Born in 1644

Go to all Rankings
Load previousLoad previous

Others Deceased in 1710

Go to all Rankings
Load previousLoad previous

In Denmark

Among people born in Denmark, Ole Rømer ranks 18 out of 1,032. Before him are Karen Blixen (1885), Vitus Bering (1681), Gorm the Old (900), Christian VII of Denmark (1749), Margaret I of Denmark (1353), and George I of Greece (1845). After him are Karl Adolph Gjellerup (1857), Christian IV of Denmark (1577), Sweyn Forkbeard (960), Christian X of Denmark (1870), Sigrid Undset (1882), and Frederick VIII of Denmark (1843).

Others born in Denmark

Go to all Rankings
Load previousLoad previous

Among ASTRONOMERS In Denmark

Among astronomers born in Denmark, Ole Rømer ranks 1. After him are Ejnar Hertzsprung (1873), John Louis Emil Dreyer (1852), Peter Andreas Hansen (1795), Richard Martin West (1941), Christen Sørensen Longomontanus (1562), Holger Thiele (1878), Julie Vinter Hansen (1890), and Anja Cetti Andersen (1965).

Danish born Astronomers

Go to all Rankings
Load previousLoad previous