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Dione

Dione

Saturn satellite, the sixth in order of distance from the planet, discovered by astronomer Gian Domenico Cassini in 1684.

Its physical characteristics are better known since the Voyager 2 probe made a close observation. It has a surface characterized by its lunar appearance, but with a much higher Albedo (30 per 100-50 per 100). Its diameter is 1,120 km (approximately one third of that of the Moon).

It is in orbit at a distance of approximately 377,000 km from the planet, making a return every 2.7 days.


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