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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. Compared to its fellow ice giant Uranus, Neptune is slightly more massive, but denser and smaller.
An annotated picture of some of Neptune's many moons as captured by the James Webb Space Telescope. The bright blue diffraction star is Triton, Neptune's largest moon; while Hippocamp, its smallest regular moon, is too small to be seen. The planet Neptune has 16 known moons, which are named for minor water deities and a water creature in Greek ...
Neptune (Latin: Neptūnus [nɛpˈtuːnʊs]) is the god of freshwater and the sea in the Roman religion. [2] ... Before Poseidon was known as the god of the sea, he ...
Outline of Neptune. The following outline is provided as an overview of and topical guide to Neptune: Neptune – eighth and farthest known planet from the Sun in the Solar System. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet. Neptune is 17 times the mass of Earth ...
Along with its bright rings, the Webb observatory spied Neptune's fainter dust bands and seven of the planet's 14 known moons. The last time Neptune's rings were seen in detail was during a flyby ...
Generally, Neptune is depicted as a rich, deep blue. Uranus is usually seen as a pale green or cyan. ... “Even though the artificially-saturated colour was known at the time amongst planetary ...
Neptune (29.9–30.5 AU) [D 6] is the furthest planet known in the Solar System. Its outer atmosphere has a slightly muted cyan color, with occasional storms on the surface that look like dark spots. Its outer atmosphere has a slightly muted cyan color, with occasional storms on the surface that look like dark spots.
There is evidence that Neptune was seen and recorded by Galileo Galilei in 1613, Jérôme Lalande in 1795, and John Herschel in 1830, but none are known to have recognized it as a planet at the time. [6] These pre-discovery observations were important in accurately determining the orbit of Neptune.