Giuseppe Piazzi
Italian Catholic priest, mathematician and astronomer (1746-1826) · Italy · Academics · Died at 80
Giuseppe Piazzi is read about 79 times a day, in 72 languages.
A typical day, 30 days to 15 October 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 390 days, one point a day.
Something wrong?He found the first object in the asteroid belt - Ceres, now classified as a dwarf planet - filling a gap astronomers had long suspected lay between Mars and Jupiter.
Also in Deutsch
Photos 8
Costanzo Angelini, L'astronomo Piazzi 1825 ca
Ceres-Beobachtung von Piazzi
Entdeckung des ersten Kleinplaneten Ceres von Francesco Ognibene
Gedenkblatt zur Entdeckung des ersten Kleinplaneten Ceres_24_06_2023_01.jpg?width=1200)
Giuseppe Piazzi (astronomo) 24 06 2023 01
Giuseppe Piazzi - Cercle Altazimutal de l' observatoire de Palerme fabriqué par Jesse Ramsden
Giuseppe Piazzi. Line engraving by Bossi, 1818, after V. Vil Wellcome V0004654
Giuseppe Piazzi. Line engraving by N. Bettoni. Wellcome V0004653Awards
About this person
Giuseppe Piazzi was born on 16 July 1746, an Italian Catholic priest in the Theatine order who also worked as a mathematician and astronomer. He established an observatory at Palermo, a facility that still operates today as the Osservatorio Astronomico di Palermo - Giuseppe S. Vaiana. On a January night in 1801, while mapping stars, he spotted a moving point of light that turned out to be Ceres - the first dwarf planet ever identified, though it would take two centuries for that classification to settle. He died on 22 July 1826, having opened a door to an entire population of small worlds.
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