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1847 in science : ウィキペディア英語版 | 1847 in science
The year 1847 in science and technology involved some significant events, listed below. ==Astronomy==
* July 1 – German amateur astronomer Karl Ludwig Hencke discovers asteroid 6 Hebe from Driesen. * August 13 – English astronomer John Russell Hind discovers asteroid 7 Iris from London. * October 18 – J. R. Hind discovers asteroid 8 Flora from London. * October 1 – American astronomer Maria Mitchell discovers comet C/1847 T1; it is independently discovered two days later by Francesco de Vico from Rome. * A new edition of the astrometric star catalogue ''Histoire Céleste Française'' is published, from which the Lalande star reference numbers which continue in use are derived.
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