![[SCIENCE-ASTRONOMY] ADAMS, JOHN COUCH. An Explanation of the Observed Irregularities in the Motion of Uranus](/sites/default/files/styles/auction_slider/public/images/lots/2015-04-15/1075497.jpg?itok=U2whKR2E)
Lot Details
Lot 188
[SCIENCE-ASTRONOMY] ADAMS, JOHN COUCH. An Explanation of the Observed Irregularities in the Motion of Uranus... In: Memoi...
... In: Memoirs of the Royal Astronomical Society, volume XVI, (1846), 1847. London: Royal Astronomical Society, 1847. Unbound sheets with the wrappers laid-in. v, 585 pp., with tables, charts etc., the Couch article on pp. 385 on (this was also issued as an offprint). Extremities slightly rubbed, some offsetting from the single-sheet laid-in wrappers, but a very rare and unusual survival.
Unbound printer's sheets for the original publication of the discovery of Neptune by Adams, a most unusual survival. Herschel had discovered Uranus in 1781, and observed perturbations in its orbit gave rise to the surmise that a further planet lay further out. The mathematical underpinnings necessary to compute the position and characteristics of the planet were completed in 1845 and first published here. Adams is considered to be the co-discoverer of Neptune, having established its presence independently of Urbain le Verrier. This work also contains the key related articles G.B. Airy's Account of some circumstances historically connected with the planet exterior to Uranus, and James Challis An account of observations undertaken in search of the planet discovered in Berlin on Sept. 23, 1846.
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