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INTRO:
In October of 1846, a month after Galle and d'Arrest first saw Neptune, William Lassell, a British Astronomer, discovered
a satellite (moon) orbiting the planet Neptune. He named it Triton.
TRITON:
Triton, the largest of Neptune's moons (almost the size of earth's moon) that circles
the planet in a retrograde direction which is the direction opposite to the rotation of the planet it's orbiting, at a steeply inclined orbit of 157 degrees.
That phenomenon led some astronomers to surmise that Neptune had captured Triton as it traveled through space several billion years ago.
The End of Triton:
It is believed that Triton may end up being torn apart by Neptune's gravitational field 100 million years from now.
This is because it is spinning in the wrong direction and this fact, when combined with that of the moon's strong tidal interaction with Neptune, the moon's orbit is slowly decaying.
Currently, if it were possible to view Neptune from Triton, Neptune would appear as a large moon approximately 16 times larger
than our moon if we were looking at it from earth.
After this disaster takes place, parts of Triton's pieces would probably land on Neptune's surface and the other half would probably
form another ring system around Neptune.
STATS:
Nereid's orbit is so highly eccentric its distance from Neptune varies from 1,353,600 to 9,623,700 kilometers, and it requires 360 days to orbit
Neptune. This is the most eccentric orbit known of any planet or moon in our solar system.
STATS:
Written by Dane Atkinson
orbit: 354,760 km from Neptune
diameter: 2700 km
mass: 2.14e22 kg
NEREID:
103 years after the discovery of Neptune's moon Triton. In 1949, astronomer Gerard Kuiper discovered a second new moon called Nereid
from Earth using a telescope.
orbit: 5,513,400 km distance from Neptune
diameter: 340 km
mass: unknown
OTHER MOONS:
While Voyager 2 passed by Neptune, it observed and found out a vast amount of new information on Neptune and it's moons.
It also discovered Neptune had 6 new moons. The new moons were:
Satellite
Distance Radius
Mass
Discoverer
Date
(000 km) (km) (kg)
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