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1831 Dien Celestial Map of the Stars and Constellations (Signed First Edition)
Uranographie-dien-1831Charles Dien Jr. (February 9, 1800 - 1870) was a French cartographer, astronomer, engineer, and globe maker associated with the observatory of Paris. Dien inherited his map-publishing business from his father, Charles Dien Sr. He is the author of several books and manuals concerning the use of scientific instruments and was a frequent collaborator with Félix Delamarche. Dien was responsible for many improvements in globe making, as described by M. Charles Dupin,
M. Dien has made many improvements upon the paper globes in common use. He has rendered them much less hygrometric; he makes the meridian and the horizon in which the globe moves, of copper. These circles are moveable by means of wheel-work.More by this mapmaker...
Alexis Bouvard (June 27, 1767 - June 7, 1843) was a French astronomer. Born in Contamines-Montjoie, Bouvard, who came from a family with four other children, left for Paris on his own at the age of seventeen. Once in Paris, he found his was to the Bureau des longitudes and the Observatory of Paris, where he was became a student astronomer. Eventually, Bouvard was named the director of the Observatory of Paris. Among his achievements include the discovery of eight comets and the compilation of the astronomical tables for Jupiter, Saturn, and Uranus. While the first two tables were a complete success, the latter contained substantial discrepancies with calculations performed at other observatories. This led Bouvard to hypothesize the existence of an eighth planet which created the irregularities in Uranus' orbit. John Couch Adams and Urban Le Verrier would independently discover the planet Neptune by using calculations based on Bouvard's observations, though only after Bouvard had died. Learn More...
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This copy is copyright protected.
Copyright © 2024 Geographicus Rare Antique Maps