Saturn(redirected from Saturnus (planet))
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photographed by the Hubble Space Telescope in 1998
1. Roman Mythology The god of agriculture.
2. The sixth planet from the sun and the second largest in the solar system, having a sidereal period of revolution about the sun of 29.5 years at a mean distance of about 1.43 billion kilometers (891 million miles), a mean diameter of approximately 121,000 kilometers (75,000 miles), and a mass 96 times that of Earth.
[Middle English Saturnus, from Old English, from Latin Sāturnus, of Etruscan origin.]
(Classical Myth & Legend) the Roman god of agriculture and vegetation. Greek counterpart: Cronus
1. (Astronomy) one of the giant planets, the sixth planet from the sun, around which revolve planar concentric rings (Saturn's rings) consisting of small frozen particles. The planet has 62 satellites. Mean distance from sun: 1425 million km; period of revolution around sun: 29.41 years; period of axial rotation: 10.23 hours; equatorial diameter and mass: 9.26 and 95.3 times that of the earth, respectively. See also Titan2
2. (Astronomy) a large US rocket used for launching various objects, such as a spaceprobe or an Apollo spacecraft, into space
3. (Alchemy) the alchemical name for lead2
1. a Roman god of agriculture, the consort of Ops, believed to have ruled the earth during an age of happiness and virtue: identified with the Greek god Cronus.
2. the planet sixth in order from the sun, having an equatorial diameter of 74,600 mi. (120,000 km), a mean distance from the sun of 886.7 million mi. (1427 million km), a period of revolution of 29.46 years, and 23 known moons. It is the second largest planet in the solar system, encompassed by a series of thin, flat rings composed of small particles of ice.
3. (in alchemy) the metal lead.
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|Noun||1.||Saturn - a giant planet that is surrounded by three planar concentric rings of ice particles; the 6th planet from the sun|
solar system - the sun with the celestial bodies that revolve around it in its gravitational field
|2.||Saturn - (Roman mythology) god of agriculture and vegetation; counterpart of Greek Cronus; "Saturday is Saturn's Day"|
Roman mythology - the mythology of the ancient Romans