Bigourdan (1851-1932) French Astronomer - May 25, 2016 | East Coast Books In Me
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Bigourdan (1851-1932) French astronomer

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Bigourdan (1851-1932) French astronomer
Bigourdan (1851-1932) French astronomer
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[FRANCE] Camille Guillaume Bigourdan (1851-1932) French astronomer. In 1877 he was appointed by F?lix Tisserand as assistant astronomer at the Toulouse Observatory, and in 1879 followed Tisserand to the Paris Observatory when the latter became director there. He spent many years verifying the positions of 6380 nebulas. He hoped to set a basis for future studies of the proper motion of nebulas; this turned out to be more or less in vain, since distant nebulas will not show any proper motion. However, he did discover approximately 500 new objects. In 1902 he participated in an effort to redetermine with greater precision the longitude difference between London and Paris. He became a member of the Bureau des Longitudes in 1903, and a member of the French Academy of Sciences in 1904. He described a method for adjusting equatorial mount telescopes, which was known as "Bigourdan's method". Bigourdan won the Lalande Prize of the French Academy of Sciences in 1883 and in 1891, and the Gold Medal of the Royal Astronomical Society in 1919. He was director of the Bureau International de l'Heure from 1919 to 1928. He married a daughter of Am?d?e Mouchez. ALS, 1889, 2pp, content about astronomy [not translated], approx. 5-1/4 x 8-1/4 in. Addressed to Louis Olivier, who was the Director of La Revue Scientifique. Blue pencil notatipons written at top of page 1; small holes along left edge [used for mounting]. VG.
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Bigourdan (1851-1932) French astronomer

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