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Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth and slightly larger than Neptune. [a] Neptune orbits the Sun once every 164.8 years at an average distance of 30.1 astronomical units (4.50 × 10 9 km).
The relative "hot spot" is due to Neptune's axial tilt, which has exposed the south pole to the Sun for the last quarter of Neptune's year, or roughly 40 Earth years. As Neptune slowly moves towards the opposite side of the Sun, the south pole will be darkened and the north pole illuminated, causing the methane release to shift to the north pole.
These lists contain the Sun, the planets, dwarf planets, many of the larger small Solar System bodies (which includes the asteroids), all named natural satellites, and a number of smaller objects of historical or scientific interest, such as comets and near-Earth objects.
The Great Dark Spot was captured by NASA's Voyager 2 space probe in Neptune's southern hemisphere. The dark, elliptically shaped spot (with initial dimensions of 13,000 × 6,600 km, or 8,100 × 4,100 mi), was about the same size as Earth, and was similar in general appearance to Jupiter's Great Red Spot.
By RYAN GORMAN Scientists may have found Planet X -- the long-rumored object believed to be larger than Earth and further from the sun than Pluto. Planet X and another object dubbed "Planet Y ...
Invasion of the Neptune Men (a.k.a. Uchû Kaisokusen) Koji Ota: Sonny Chiba, Ryûko Minakami, Mitsue Komiya: Japan: Action Konga: John Lemont: Michael Gough, Margo Johns, Jess Conrad, Claire Gordon: United Kingdom United States Horror The Last War (a.k.a. Sekai daisensô) Shūe Matsubayashi: Frankie Sakai, Akira Takarada, Yuriko Hoshi: Japan: Drama
The mass ratio of this planet with its star is more than 100 times greater than that of Earth and the sun. ... not big enough to host planets much larger than Earth. ... 50 light years from Earth ...
Philip K. Scheuer of the Los Angeles Times wrote that the film was "more than another science-fiction movie, with the emphasis on fiction; it is a genuinely thought-through concept of the future, and the production MGM has bestowed on it gives new breadth and dimension to that time-worn phrase, 'out of this world.'" [28] John McCarten of The ...