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Giovanni [a] Domenico Cassini, also known as Jean-Dominique Cassini (8 June 1625 – 14 September 1712) was an Italian (naturalised French) [1] mathematician, astronomer, astrologer and engineer. Cassini was born in Perinaldo , [ 2 ] [ 3 ] near Imperia , at that time in the County of Nice , part of the Savoyard state .
Astronomer Giovanni Domenico Cassini first observed what he called the “Permanent Spot” on Jupiter in 1665. New research suggests that the Great Red Spot formed about 190 years ago, which ...
Cassini. Sidera Lodoicea / ˈ s ɪ d ər ə ˌ l oʊ d oʊ ˈ ɪ s iː ə / is the name given by the astronomer Giovanni Domenico Cassini to the four moons of Saturn discovered by him in the years 1671, 1672, and 1684 and published in his Découverte de deux nouvelles planètes autour de Saturne in 1673 and in the Journal des sçavans in 1686.
The phenomenon was investigated by the astronomer Giovanni Domenico Cassini in 1683. According to some sources, he explained it by dust particles around the Sun. [26] [27] Other sources state that it was first explained this way by Nicolas Fatio de Duillier, in 1684, [28] whom Cassini advised to study the zodiacal light. [25]
Neith is a hypothetical natural satellite of Venus reportedly sighted by Giovanni Cassini in 1672 and by several other astronomers in following years. It was 'observed' up to 30 times by astronomers until 1770, when there were no new sightings and it was not found during the transit of Venus in 1761 and 1769.
Cassini's laws provide a compact description of the motion of the Moon. They were established in 1693 by Giovanni Domenico Cassini, a prominent scientist of his time. [1] Refinements of these laws to include physical librations have been made, [1] and they have been generalized to treat other satellites and planets. [2] [3] [4]
Discoveries by Giovanni Domenico Cassini (5 P) Pages in category "Giovanni Domenico Cassini" The following 13 pages are in this category, out of 13 total.
Jean Richer (1630–1696) was a French astronomer and assistant (élève astronome) at the French Academy of Sciences, under the direction of Giovanni Domenico Cassini. Between 1671 and 1673 he performed experiments and carried out celestial observations in Cayenne, French Guiana, at the request of the French Academy. [1]