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James Challis FRS (12 December 1803 – 3 December 1882) was an English clergyman, physicist and astronomer. Plumian Professor of Astronomy and Experimental Philosophy and the director of the Cambridge Observatory, he investigated a wide range of physical phenomena though made few lasting contributions outside astronomy.
James Challis FRS (Braintree, 12 de dezembro de 1803 — Cambridge, 3 de dezembro de 1882) foi um físico, astrônomo e clérigo inglês. Foi Professor Plumiano de Astronomia e Filosofia Experimental (1836–1883) e diretor do Observatório de Cambridge. É conhecido por ter perdido a oportunidade de descobrir o planeta Netuno em 1846.
James Challis was a British clergyman and astronomer, famous in the history of astronomy for his failure to discover the planet Neptune. Elected a fellow of Trinity College, Cambridge, in 1826 and ordained in 1830, Challis became Plumian professor of astronomy and director of the Cambridge.
- The Editors of Encyclopaedia Britannica
9 de nov. de 2020 · Noticing the similarity between Le Verrier’s and Adams’ (still unpublished) results, British Astronomer Royal George Airey urged astronomer James Challis to immediately search the skies....
12 de dez. de 2017 · James Challis (1803-1882) was an English clergyman, physicist and astronomer who became Astronomer Royal in 1846. He failed to identify the planet Neptune, predicted by John Couch Adams and Urbain Le Verrier, despite observing it twice in 1846.
22 de mai. de 2021 · James Challis’s search from the Cambridge University Observatory for the postulated planet beyond Uranus erupted in debates and controversies in Britain and beyond once the planet had been telescopically discovered from Berlin. There arose, in fact, an international furore that permanently damaged the Astronomer Royal’s reputation.
24 de dez. de 2016 · James Challis was a Cambridge University astronomer best known for his failure to discover Neptune in the summer of 1846. Educated at Cambridge, where he was a senior wrangler, Challis was elected a fellow of Trinity College in 1826.
