Dione (chemistry), a molecule with two ketone functional groups
Dione (DJ), Dutch Hardcore DJ
See also, Dione in Greek mythology is a vague goddess presence who has her most concrete form in Book V of Homers Iliad as the mother of Aphrodite: Aphrodite journeys to Diones side after she has been wounded in battle while protecting her favorite son Aeneas. ... Atmosphere none Dione (dye-oe-nee, Greek Διώνη) is a moon of Saturn discovered by Giovanni Cassini in 1684. ... 106 Dione is a large main belt asteroid. ... Ketone group A ketone is either the functional group characterized by a carbonyl group linked to two other carbon atoms or a chemical compound that contains this functional group. ...
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Dione is composed primarily of water ice, but as the third densest of Saturn's moons (aside from Enceladus and Titan, whose density is increased by gravitational compression) it must have a considerable fraction of denser material like silicate rock in its interior.
One hypothesis was that shortly after its formation Dione was geologically active, and some process such as ice volcanism resurfaced much of its surface, with the streaks forming from eruptions along cracks in Dione's surface that fell back to the surface as snow or ash.
This suggests that during the period of heavy bombardment, Dione was tidally locked to Saturn in the opposite orientation.
Dione in Greek mythology is a vague goddess presence who has her most concrete form in Book V of Homer's Iliad as the mother of Aphrodite: Aphrodite journeys to Dione's side after she has been wounded in battle while protecting her favorite son Aeneas.
Although Dione is not a Titan in Hesiod, but appears instead in his Theogony among the long list of Oceanids, Apollodorus includes her among the Titans (1.1.3 and 1.3.1).
The archaic king Tantalus in Lydia had Dione as a consort: the Roman mythographer, Hyginus, (Fabulae 82, 83) says that Dione is a daughter of Atlas and the mother, by Tantalus, of Pelops, Niobe and Broteas.
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