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Giovanni Domenico Cassini fue un astrónomo, geodesta e ingeniero francés de origen italiano. Descubrió la división de los anillos de Saturno que lleva su nombre.
Giovanni Domenico Cassini (1625 –1712) was an Italian mathematician, astronomer, engineer, and astrologer. Cassini was born in Perinaldo, near Imperia, at that time in the County of Nice under the control of the Republic of Genoa. Cassini is known for his work in the fields of astronomy and engineering. Cassini most notably discovered four satellites of the planet Saturn and noted the division of the rings of Saturn (with the Cassini Division becoming named after him).