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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 .
Contributions; Talk; Contents move to sidebar hide ... Astronomy February 6 – Isaac ... December 23 – Giovanni Cassini discovers Rhea, ...
Jacques Cassini (18 February 1677 – 16 April 1756) was a French astronomer, son of the famous Italian astronomer Giovanni Domenico Cassini. He was known as Cassini II. He was known as Cassini II. Biography
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.
1 Astronomy. 2 Exploration. 3 Mathematics. ... Giovanni Cassini discovers the Cassini Division in the rings of Saturn.
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.
In 1672 Jean Richer and Giovanni Domenico Cassini measure the astronomical unit (AU), the mean distance Earth-Sun, to be about 138,370,000 km, [83] (later refined by others up to the current value of 149,597,870 km). This gave for first time ever a well estimated size of the then known Solar System (that is, up to Saturn), following the scale ...
1665 – Cassini determines the rotational speeds of Jupiter, Mars, and Venus. [95] 1668 – Isaac Newton builds his own reflecting telescope, the first fully functional of this kind, and a landmark for future developings as it reduces spherical aberration with no chromatic aberration. [96] 1672 – Cassini discovers Saturn's moons Iapetus and ...