Word: esclangon
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...star is, parallax furnished the first dependable clue to stellar distances. Beginning in 1903, Frank Schlesinger developed such effective photographic methods of parallax measurement that now some 2,000 have been accurately determined. Elected president of the next Congress, to be held in 1938 at Stockholm, was Ernest Esclangon, 59, director of the observatories at Paris and Meudon and Professor of Astronomy at University of Paris...
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