1911 Encyclopædia Britannica/Piazzi, Giuseppe

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PIAZZI, GIUSEPPE (1746–1826), Italian astronomer, was born at Ponte, in the Valtellina, on the 16th of July 1746. He entered the Theatine Order in 1764, accepted the chair of mathematics in the academy of Palermo in 1780, and persuaded the Viceroy, Prince Caramanico, to build an observatory there During a visit to England in 1788 he procured from Iesse Ramsden a five-foot alt azimuth, with which he collected at Palermo, 1792-1813, the materials for two admirable star catalogues, published in 1803 and 1814 respect1vely while engaged on this work he discox ere cl, on the ISL of January 1801, the first asteroid or minor planet, to hich he gave the name of Ceres, the tutelary deity of Sicily. He d1ed at Naples on the 22nd of July 1826.

See B. E Marneri, L'Asmmomo Gzuseppe Pwzzz (Milan, 1871); R. Wolf, Bzographzen, Bd iv p 275; Monatliche Correspondenz (1810; portrait), xxi. 46; Ash' Jahrbuch, hv 218; Bulletm des suences (1826), vi. 339, Edm. Journal of Sczencf (1827), vi. 193; Memoirs Roy. Astr. Soc. 111. 119; R. (grant, Hist. Phys. Astronomy, Dil 2381 510> 549