Jacques Cassini (18 February 1677 – 16 April 1756) was a French astronomer, son of the famous Italian astronomer Giovanni Domenico Cassini. He was known...

marriage Cassini had two sons; the younger, Jacques Cassini, succeeded him as astronomer and geodesist under the name of Cassini II." In 1711 Cassini went...

engineer, and astrologer Jacques Cassini (1677–1756), French astronomer, son of Giovanni Domenico Cassini César-François Cassini de Thury (1714–1784), French...

and the Gregorian calendar for years after 1582, as exemplified by Jacques Cassini (1740), Simon Newcomb (1898) and Fred Espenak (2007). The prefix AD...

the second son of Jacques Cassini and Suzanne Françoise Charpentier de Charmois. He was a grandson of Giovanni Domenico Cassini, and would become the...

Mare Imbrium. The crater was named after astronomers Giovanni Cassini and Jacques Cassini. To the northeast is the Promontorium Agassiz, the southern tip...

French astronomer Jacques Cassini (Cassini II), who is traditionally credited with inventing year zero. In his Tables astronomiques, Cassini labeled the year...

family Compositae). He was the youngest of five children of Jacques Dominique, Comte de Cassini, famous for completing the map of France, who had succeeded...

towards the centre. Between 1684 and 1718 Giovanni Domenico Cassini and Jacques Cassini, along with Philippe de La Hire, carried a triangulation, starting...

Cassini Arthur Cassini (1836–1913), Russian diplomat César-François Cassini de Thury (1714–1784), French astronomer and cartographer, son of Jacques,...

make Earth oblate (wider at the equator), while the early surveys of Jacques Cassini (1720) led him to believe Earth was prolate (wider at the poles). The...

tables, eclipse tables). For an example of the information provided see Jacques Cassini, Tables astronomiques du soleil, de la lune, des planètes, des étoiles...

several unsuccessful attempts to measure the parallax of Sirius: by Jacques Cassini (6 seconds); by some astronomers (including Nevil Maskelyne) using...

astronomical year numbering, introduced in 1740 by French astronomer Jacques Cassini, which considers each New Year an integer on a time axis, with year...

he moved to astronomy under the supervision of Joseph Lieutaud and Jacques Cassini. In 1714 he entered the French Academy of Sciences as pupil of Giacomo...

Chicago: University of Chicago Press. p. 63. ISBN 978-0-226-76747-5. Jacques Cassini. (1720) De la grandeur et de la figure de la Terre On the size and...

Jacques Cassini in 1722, the rotational axis of the Moon precesses with the same rate as its orbital plane, but is 180° out of phase (see Cassini's Laws)...

that he had found a new comet. News of the discovery was passed to Jacques Cassini in Paris. He was able to confirm the comet's position, though with...

was extended most notably by the Cassini family: between 1683 and 1718 Jean-Dominique Cassini and his son Jacques Cassini surveyed the whole of the Paris...

concentrated thereafter on science, and, through the patronage of Jacques Cassini, obtained employment, first in surveying the coast from Nantes to Bayonne...

astronomer Jean-Dominique Maraldi in 1746 while observing a comet with Jacques Cassini. Charles Messier rediscovered it in 1760, but thought that it is a...

Exploration. Archived from the original on 2022-12-13. Retrieved 2022-12-13. Jacques Cassini. (1720) De la grandeur et de la figure de la Terre Archived 2023-03-29...

and mayor of Amsterdam Giovanni Cassini (a.k.a. Cassini I, Italy & France, 1625–1712) Jacques Cassini (a.k.a. Cassini II, France, 1677–1756) John James...

subsidiary points inside the primary network later. Between 1733 and 1740, Jacques Cassini and his son César undertook the first triangulation of France. They...

closer to an oblate spheroid than to a sphere. However, around 1730, Jacques Cassini argued for a prolate spheroid instead, due to different interpretations...

each member could do as they pleased. Sometimes Giovanni Cassini (1671–1712) and Jacques Cassini (1712–1756) are listed as "Directors" retrospectively....

greater around the Equator or around the poles. French astronomer Jacques Cassini held to the view that the polar circumference was greater. Louis XV...

the French astronomers Philippe de la Hire (in the year 1702) and Jacques Cassini (in the year 1740), purely to simplify certain calculations, put the...

Newton and he published the orbit results in 1687. Later, in 1699, Jacques Cassini proposed that comets could have relatively short orbital periods and...

giant, now known to be from the dinosaur Megalosaurus. February 8 – Jacques Cassini, French astronomer (died 1756) September 17 – Stephen Hales, English...