Engraving of Giovanni Cassini

Engraving of Giovanni Cassini

H403/0076 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 25.9MB

Downloadable file size: 2.4MB

Price image Pricing

Please login to use the price calculator



Caption: Portrait after an engraving of Giovanni Cassini (1625-1712), Italian-French astronomer. Although born in Italy, Cassini went to Paris in 1669, never to return. As director of the Observatory, he added greatly to our knowledge of the Solar System. He first worked out the rotational periods of Jupiter, Mars and Venus, and tabulated the motions of the Galilean satellites of Jupiter. He discovered four new moons of Saturn, and observed the gap in Saturn's ring system (called the Cassini Division). Using simultaneous observation data of Mars from Paris and French Guiana, he produced the first accurate measurement of the distance between the Sun and Earth (only 7% low).

Release details: Model release not available. Property release not required.

Keywords: astronomer, cassini, cassini division, discoverer, earth-sun distance, giovanni, jupiter, moon, pioneer, portraits, saturn, sun-earth distance, surname c

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.