Giacomo Filippo Maraldi
Giacomo Filippo Maraldi , sometimes called Jacques Philippe Maraldi , born with Perinaldo, county of Nice, the August 21st 1665 and died on February 1st 1729, is a Mathématicien and Astronome free - Italian.
He was nephew of Jean-Dominique Cassini, which made it come in France in 1687 to the Observatoire from Paris.
He made a great number of observations (which one finds in the Mémoires of the Academy of Science , among which one notices his Considérations on the theory of the planets ), and was allowed with the royal Académie of sciences in 1699.
Towards 1705, it constituted a catalog of the positions of stars, the Catalog of fixed stars , with an aim of discovering Parallaxe S, but in vain. At the time of its observations of Mars, in 1704 and 1719, it determined the period of rotation of this planet (approximately 24:40 min). On the surface of Mars, it observed the southern polar spot and discovered in 1704 the boreal polar task. He noticed light the eccentricity of those compared to the pole S. Moreover, he observed the moons of Jupiter, studied the passage of several Comet S. He showed that the visible halation of light at the time of a total eclipse of Sun came from the Sun and not from the the Moon. In 1704, he discovered that the star R Hydrae was a variable star.
Between 1700 and 1718, with Jean-Dominique Cassini and Hire wire, it worked on the meridian one and prolonged the geodetic triangulation of Dunkirk to Collioure, with the feet of the the Pyrenees.
It is in Maraldi ( Mémoires of the Academy of Science , 1715) which one owes the first work on the causes of various appearances of the rings of Saturn.
In mathematics, it was also known for its experimental calculation of the Angle S of the Dodécaèdre and the angles of the Rhombe S of the cells of bees.
It was him which raised its small nephew César-François Cassini, second wire of Jacques Cassini.
crater S of the Moon and Mars bear the name of Maraldi in its honor and the honor of its nephew.
Not to confuse with the astronomer Jean-Dominique Maraldi (Maraldi II, 1709-88) its nephew.
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