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It is in a 2:3 orbital resonance with Neptune, thus it is classified as a plutino. [3] There are indications it may be dense enough to be a dwarf planet. It was given the minor planet number 455502 on 22 February 2016. [11] 2003 UZ 413 has been observed 79 times over 15 oppositions, with precovery images back to 27 July 1954. [2]
Neptune's second-known satellite (by order of discovery), the irregular moon Nereid, has one of the most eccentric orbits of any satellite in the Solar System. The eccentricity of 0.7512 gives it an apoapsis that is seven times its periapsis distance from Neptune. [j] From July to September 1989, Voyager 2 discovered six moons of Neptune. [162]
Venus rotates clockwise, and Uranus has been knocked on its side and rotates almost perpendicular to the rest of the Solar System. The ecliptic remains within 3° of the invariable plane over five million years, [ 2 ] but is now inclined about 23.44° to Earth's celestial equator used for the coordinates of poles.
The Small Dark Spot, sometimes also called Dark Spot 2 or The Wizard's Eye, was an extraterrestrial vortex on the planet Neptune. [1] [2] It was the second largest southern cyclonic storm on the planet in 1989, when Voyager 2 flew by the planet. When the Hubble Space Telescope observed Neptune in 1994, the storm had disappeared. [3]
The new planet, at first called "Le Verrier" by François Arago, received by consensus the neutral name of Neptune. Its mathematical prediction was a great intellectual feat, but it showed also that Newton's law of gravitation, which Airy had almost called in question, prevailed even at the limits of the Solar System. [20]
A mysterious floating island that rotates on its own axis has been discovered in Argentina. It's being called 'The Eye.' The island is a near perfect circle at 130 yards in diameter that shifts ...
Its namesake is William Lassell, the English astronomer who discovered Neptune's largest moon, Triton. [20] This ring is a faint sheet of material occupying the space between the Le Verrier ring at about 53,200 km and the Arago ring at 57,200 km. [ 4 ] Its average normal optical depth is around 10 −4 , which corresponds to an equivalent depth ...
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