The Neptunian moons are listed here by orbital period, from shortest to longest. She has taught science courses at the high school, college, and graduate levels. Reitsema, William B. Images from Voyager 2 — Oberon, Uranus' outermost moon, shows several impact craters on the moon's icy surface. Voyager 2's images showed an asteroid-like body with a surface pockmarked with craters. Thirdly, they both have unusual orbital eccentricities: Nereid has one of the most eccentric orbits of any known irregular satellite, and Triton's orbit is a nearly perfect circle. Other scientists think that when Triton was captured by Neptune, Triton's mass and odd orbit caused Neptune's original moons to be destroyed by gravityonly to be reformed after Triton formed a stable orbit. Monthly Notices of the Royal Astronomical Society. Your age on the Planets.
Neptune is the 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. Neptune has 14 known moons, which are named for minor water deities in Greek mythology. Inward of Triton are seven small regular satellites, all of which have prograde orbits in planes that lie close to Voyager 2 rediscovered Larissa and discovered five inner moons: Naiad, Thalassa, Despina, Galatea and Proteus.
Scientists using powerful telescopes and spacecraft have discovered a total of 14 moons orbiting Neptune.
Triton is the only large moon in the solar system that has a retrograde orbit, which means it orbits in the opposite direction of Neptune's rotation. Sao and Laomedeia have prograde orbits, while Halimede, Psamathe, and Neso have retrograde orbits.
Ahead of the New Horizons flyby of Pluto inNASA released the best-ever map of Triton because the two worlds were expected to be somewhat similar ; this would allow for comparisons.
Main article: Nereid moon. Bibcode : Sci Even those moons orbiting closer to Neptune would not have escaped some disruption.
Overview Neptune Moons – NASA Solar System Exploration
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Mean Distance from Neptune,km (, miles). Orbital Period around Neptune, Earth days. Mean Diameter, km ( miles). Learn about the 14 moons of the planet Neptune. Get their names and interesting facts about their characteristics. Moving from closest to Neptune to furthest out, their names are Naiad, Thalassa, Despina, Galatea, Larissa, S/ N1 S/ N1 is Neptune's smallest moon, while Proteus is its largest regular moon and.
Over the years, several working groups have proposed different ideas for getting to Neptune, but the mission concepts have yet to leave the drawing board due to reported budgetary or plutonium shortages as plutonium is required to get a powered spacecraft out that far.
For the "normal" irregular satellites, the general convention is to use names ending in "a" for prograde satellites, names ending in "e" for retrograde satellites, and names ending in "o" for exceptionally inclined satellites, exactly like the convention for the moons of Jupiter.
Long-term observations of Neptune have allowed scientists observe storm formation and also to track storm evolution on the ice giant.
Video: All about neptunes moons Moons of the Outer Solar System
July Neptune is a gas giant distant from the sun in the outer solar system and it has 14 moons. Ten things to know about Voyager 2 on the 40th anniversary of its launch.
Each of the moons is named for a mythological Greek water deity.
Unlike all other large planetary moons, Triton has a retrograde orbit (it rotates opposite to Neptune's. (Neptune's moons are named after figures in Greek mythology usually. All are less than half of Triton's distance from Neptune and are regular moons—i.e., they It orbits between Larissa and Proteus, two moons discovered by Voyager.
Triton is massive enough to have achieved hydrostatic equilibrium and to retain a thin atmosphere capable of forming clouds and hazes.
The other moons are considered irregular, as they have eccentric orbits that are often retrograde and far from Neptune.
Learn About Neptune's Moons
By using ThoughtCo, you accept our. Proteus is the only regular moon that is roughly spherical. Images from Voyager 2 — Uranus' rings, photographed by Voyager 2 as it approached the plane of the Uranian ring system.
All content from Kiddle encyclopedia articles including the article images and facts can be freely used under Attribution-ShareAlike license, unless stated otherwise. Stone, JPL's director sinceis stepping down on May 1.
All about neptunes moons
|Meet Hippocamp, Neptune's new moon.
It also has a nitrogen atmosphere — likely created from volcanic activity — with methane traces. Miranda is the the eleventh known satellite of Uranus. Kuiper in At its greatest distance, Nereid is nearly seven times as far from Neptune as at its smallest distance.