Proteus

This natural satellite related article is a stub. You can help Orbiterwiki by expanding it. Io Proteus in Orbiter 2016 with D3D9 client Designation Name Proteus Reference body Neptune Planetary mean orbits Epoch 2006.49555099247 (2006 June 30) Semimajor axis (a) 117646138.8 m Eccentricity (e) 0..000721043486568402 Inclination (i) 29.03364224° (0.50673265090984 radian) Longitude of the ascending node (LAN, ☊) 50.67821102° (0.844501641369886 radian) Longitude of periapsis (ϖ) 247.9521324° (4.32758109853377 radian) Mean longitude (L) 275.122144° (4.80178725780075 radian) Selected physical parameters Mean radius 200000 m Mass 2.346×1019 kg Note *Elements given are from Proteus.cfg (Orbiter 2016) Proteus, (Neptune VIII, S/1989 N 1) is the largest inner satellite and the second largest moon of Neptune. Proteus was discovered by Voyager 2 during its flyby of Neptune in 1989. It was later named Proteus, the shape-shifting sea-god of Greek mythology. Proteus is tidally locked to Neptune in that the same side faces Neptune throughout its orbit. Proteus in Orbiter Proteus was introduced to Orbiter with the release of uranus-neptune-moons.zip in 2002. Orbiter versions and add-ons which include Io Add-on Source Version Author Type Release Date Compatibility Wiki article Uranus / Neptune Moons Addon AVSIM Robert Stettner (Foxtrot) Scenery 12 October 2002 See also Proteus at Wikipedia Gallery Proteus in Orbiter 2002 Proteus as seen by Voyager 2 in 1989; from Wikimedia Commons : Neptune's natural satellites Named satellites: Despina | Galatea | Halimede | Hippocamp | Laomedeia | Larissa | Naiad | Nereid | Neso | Proteus | Psamathe | Sao | Thalassa | Triton Numbered Satellites: S/2021 N 1 See also: Pronunciation key | rings of Neptune The Solar System Central star Sun (Sol) Planets Mercury - Venus - Earth - Mars - Jupiter - Saturn - Uranus - Neptune Natural satellites Moon - Phobos - Deimos - Io - Europa - Ganymede - Titan - more... Add-ons Planets - Dwarf Planets - Small objects - Natural satellites - Alternative star systems