Barnaba Oriani

Barnaba Oriani
Portrait of Barnaba Oriani by Pietro Narducci, 1830
Born(1752-07-17)17 July 1752
Garegnano, Milan, Duchy of Milan
Died12 November 1832(1832-11-12) (aged 80)
Occupations
  • Catholic priest
  • Geodesist
  • Astronomer
  • Scientist
Known forDetailed research of the planet Uranus
Oriani's theorem
Parent(s)Giorgio Oriani and Margherita Oriani (née Galli)
Scientific career
Fieldsastronomy
InstitutionsBrera Astronomical Observatory
Notable studentsFrancesco Carlini

Barnaba Oriani FRS FRSE (17 July 1752 – 12 November 1832) was an Italian priest, geodesist, astronomer and scientist, known for Oriani's theorem and for his research on Uranus. His skill in spherical trigonometry enabled him to be the first in computing the path and perturbations of the first dwarf planet, Ceres (discovered by his friend Piazzi in 1801). Oriani was also the first to determine the orbit of Uranus.