Édouard Stephan

1837 - 1923

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Édouard Jean-Marie Stephan (31 August 1837 – 31 December 1923) was a French astronomer. His surname is sometimes spelled Stéphan in some literature, but this is apparently erroneous. He was born in Sainte Pezenne (today one of the districts of the town of Niort) and attended the Ecole Normale Superieure, and graduated at the top of his class in 1862.He was the director of the Marseille Observatory from 1864 to 1907 (until 1872 he was subordinate to Urbain le Verrier). Read more on Wikipedia

Since 2007, the English Wikipedia page of Édouard Stephan has received more than 18,536 page views. His biography is available in 33 different languages on Wikipedia (up from 31 in 2019). Édouard Stephan is the 126th most popular astronomer (down from 125th in 2019), the 1,674th most popular biography from France (down from 1,640th in 2019) and the 10th most popular French Astronomer.

Memorability Metrics

  • 19k

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  • 67.49

    Historical Popularity Index (HPI)

  • 33

    Languages Editions (L)

  • 12.56

    Effective Languages (L*)

  • 1.75

    Coefficient of Variation (CV)

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Among astronomers, Édouard Stephan ranks 126 out of 532Before him are Christian Heinrich Friedrich Peters, Ali Qushji, Giovanni Battista Hodierna, Alphonse Borrelly, Harlow Shapley, and Eric Walter Elst. After him are James Van Allen, Russell Alan Hulse, Andreas Cellarius, Walter Sydney Adams, Ingrid van Houten-Groeneveld, and Arthur Auwers.

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Among people born in 1837, Édouard Stephan ranks 31Before him are Émile Waldteufel, James Murray, Abraham Kuyper, Arnold Janssen, Pierre Auguste Cot, and Ilia Chavchavadze. After him are Wild Bill Hickok, Virginia Oldoini, Countess of Castiglione, Vasily Radlov, Ion Creangă, Algernon Charles Swinburne, and Tippu Tip. Among people deceased in 1923, Édouard Stephan ranks 34Before him are Hovhannes Tumanyan, Edward W. Morley, Maurice Barrès, James Dewar, Ernest Augustus, Crown Prince of Hanover, and Aleksandar Stamboliyski. After him are Georg Luger, Charles Dupuy, William Ernest, Grand Duke of Saxe-Weimar-Eisenach, Théophile Steinlen, Albert Leo Schlageter, and Vatroslav Jagić.

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In France

Among people born in France, Édouard Stephan ranks 1,674 out of 5,234Before him are Antoine Béchamp (1816), Émile Coué (1857), Jules Breton (1827), Henry Darcy (1803), Joël Robuchon (1945), and Charles Huntziger (1880). After him are William III, Duke of Aquitaine (910), Guy Hamilton (1922), Étienne Maurice Falconet (1716), Bernard Courtois (1777), Louis Henri, Prince of Condé (1756), and Anne Gonzaga (1616).


Among astronomers born in France, Édouard Stephan ranks 10Before him are Pierre Janssen (1824), Jacques Cassini (1677), Nicolas-Claude Fabri de Peiresc (1580), Nicolas-Louis de Lacaille (1713), Jean Picard (1620), and Alphonse Borrelly (1842). After him are Guillaume Bigourdan (1851), Joseph-Nicolas Delisle (1688), Auguste Charlois (1864), Bernard Lyot (1897), Guillaume Le Gentil (1725), and Jean Chacornac (1823).