Pietro Pitati
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- For the crater, see Pitatus (crater).
For the painter Bonifazio de' Pitati, see Bonifazio Veronese.
Pietro Pitati (in Latin, Petrus Pitatus) (?-fl. ca. 1550) was an Italian astronomer and mathematician. Bernardino Baldi, in his Cronica de matematici (1707) calls Pitati a noble Veronese who was trained in mathematics by a Benedictine friar named Innocentio da Novara.[1]
It is known that he was the author of several astronomical works and almanacs. His Paschales atque nouiluniorum mensurni canones. De varia paschalis solemnitatis obseruatione...De Hebraica anni quantitate...Calendarium nouum cum noua aurei numeri positione, ortu quoque, & occasu stellarum fixarum (Venice, March 1537) is one of many sixteenth century attempts to reform the calendar, and establish, among other things, the correct day of Easter. This was his first work; a similar treatise was presented to Pope Pius IV in 1550, but it was never published.[2]
Pitati also wrote a small tome on the nature of the Sun and the Moon, called Compendium...super annua solaris, atque lunaris anni quantitate...Ortu quoque, et occasum stellarum fixarum, in tres divisum Tractatus (Venice, 1564).
He compiled ephemerides, to which he added supplements over the years, such as Almanach nouum...Superadditis annis quinque supra ... Ephemeridas 1551. ad futurum Christi annum 1556. Isagogica in coelestem Astronomicam disciplinam ... Tractatus tres perbreues de Electionibus, Reuolutionibus annorum, & mutatione aeris. Item horariae tabulae per altitudinem solis in die, ac stellarum in nocte ad medium sexti climatis.(Venice, 1542).
The lunar crater Pitatus is named after him. The mathematician and astronomer Giovanni Padovani was a student of Pitati.
