
Mean Distance from the Sun(AU) 30.109
Sidereal period of orbit(years) 164.79
Equatorial Radius(km) 24764
Polar Radius(km) 24340
Body rotation period(hours) 16.11
Tilt of equator to orbit(degrees) 28.8
Number of observed satellites 8
Distance Radius Mass Satellite (000 km) (km) (kg) Discoverer Date --------- -------- ------ ------- ---------- ----- Naiad 48 29 ? Voyager 2 1989 Thalassa 50 40 ? Voyager 2 1989 Despina 53 74 ? Voyager 2 1989 Galatea 62 79 ? Voyager 2 1989 Larissa 74 96 ? Voyager 2 1989 Proteus 118 209 ? Voyager 2 1989 Triton 355 1350 2.14e22 Lassell 1846 Nereid 5509 170 ? Kuiper 1949
Distance Width Ring (km) (km) aka ------- -------- ----- ------- Diffuse 41900 15 1989N3R, Galle Inner 53200 15 1989N2R, LeVerrier Plateau 53200 5800 1989N4R, Lassell, Arago Main 62930 50 1989N1R, Adams(distance is from Neptune's center to the ring's inner edge)
![]() Aries |
![]() Taurus |
![]() Gemini |
![]() Cancer |
![]() Leo |
![]() Virgo |
Libra |
![]() Scorpio |
![]() Sagittarius |
![]() Capricorn |
![]() Aquarius |
![]() Pisces |