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Neptune is the eighth and farthest known planet from the Sun. It is the fourth-largest planet in the Solar System by diameter, the third-most-massive planet, and the densest giant planet. It is 17 times the mass of Earth and slightly more massive, but denser and smaller, than fellow ice giant Uranus.
Neptune (Latin: Neptūnus [nɛpˈtuːnʊs]) is the god of freshwater and the sea in the Roman religion. [2] He is the counterpart of the Greek god Poseidon. [3] In the Greek-inspired tradition, he is a brother of Jupiter and Pluto, with whom preside over the realms of heaven, the earthly world (including the underworld), and the seas. [4]
According to the second and third Vatican Mythographer, Neptune's trident symbolizes the three properties of water: liquidity, fecundity and drinkability. [12]The trident of Neptune was viewed by Roman scholar Maurus Servius Honoratus as three-pronged because "the sea is said to be a third part of the world, or because there are three kinds of water: seas, streams and rivers".
A gas giant is a giant planet composed mainly of hydrogen and helium. [1] Jupiter and Saturn are the gas giants of the Solar System. The term "gas giant" was originally synonymous with "giant planet". However, in the 1990s, it became known that Uranus and Neptune are really a distinct class of giant planets, being composed mainly of heavier ...
In order of distance from Neptune, the regular moons are Naiad, Thalassa, Despina, Galatea, Larissa, Hippocamp, and Proteus. All but the outer two are within Neptune- synchronous orbit (Neptune's rotational period is 0.6713 day or 16 hours [20]) and thus are being tidally decelerated. Naiad, the closest regular moon, is also the second smallest ...
The largest moon of the planet Neptune has been given the name Triton, as Neptune is the Roman equivalent of Poseidon. A family of large sea snails, the shells of some of which have been used as trumpets since antiquity, are commonly known as "tritons", see Triton (gastropod) .
Discovery of Neptune. New Berlin Observatory at Linden Street, where Neptune was discovered observationally. Neptune as imaged by the Voyager 2 probe in 1989. The planet Neptune was mathematically predicted before it was directly observed. With a prediction by Urbain Le Verrier, telescopic observations confirming the existence of a major planet ...
The Etruscan Vanth is frequently portrayed in the company of Charun (Charon), and so as the name of the moon of Orcus (nicknamed the "anti-Pluto" because resonance with Neptune keeps it on the opposite side of the Sun from Pluto), it is an allusion to the parallels between Orcus and Pluto. Brown quoted Taaffe as saying that if Vanth ...