Astronomy.- Uranus.- Le Verrier (Urbain Jean Joseph) "Recherches sur

Astronomy.- Uranus.- Le Verrier (Urbain Jean Joseph) "Recherches sur les mouvements d'Uranus", in Comptes rendus hebdomadaires des séances de l'académie des sciences, vol. 22, p.907-918, ex-library copy with ink-stamps and bookplates, foxing, library half calf, gilt spine with red morocco and paper labels, old repair to lower joint, upper cover detached, rubbed, Paris, 1846; and vol.23 with supplementary papers relating to Uranus, 4to (2) *** Fundamental paper where Le Verrier demonstrates that the observed irregularities in the motion of Uranus can only be explained by the existence of an unknown planet. This work led directly to the observational discovery of the planet Neptune a few months later. Volume 23 includes Le Verrier's "Sur la planète qui produit les anomalies observées dans le mouvement d'Uranus", along with other supplementary papers relating to the identification, confirmation, and defence of the discovery of this new planet.

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