DESPINA:
       Despina is 27,700 kilometer from Neptune, and makes it's orbit every 8 hours. This moon's diameter is about 150 km. It is irregularly shaped and it circles the planet in the same direction as Neptune rotates. Despina was discovered by Voyager 2 in 1989. Its mass remains unknown, but it has an equatorial radius of 74 km. The average distance of Despina from Neptune is 52,500 km. Despina's orbital period is about 0.33 days. Its diameter is about 150 kilometers (90 miles). It is irregularly shaped and shows no sign of any geological modification. Despina circles the planet in the same direction as Neptune rotates, and remains close to Neptune's equatorial plane.

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GALATEA:
       Galatea is 37,200 km from Neptune. It has a diameter of 180 km with an orbital period of 10 hours, 18 minutes. It is irregularly shaped and circles the planet in the same direction as Neptune rotates.
       Galatea was discovered by Voyager 2 in 1989. The mass remains unknown but it's equatorial radius is 79 km. The average distance from Neptune is 62,000 km. Galatea has an orbital period of 0.428745 days. Galatea has a magnitude of 22.3 Vo.

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LARISSA:
       Larissa is about 48,800 km from Neptune and circles the planet in 13 hours, 18 minutes. Larissa's diameter is about 190 km. It is irregularly shaped and circles the planet in the same direction as Neptune rotates. Larissa was discovered by Stephen Synnott in 1989. It's mass remains unknown and has a radius of 104x89 km. The average distance from Neptune is 73,600 km. It has an orbital period of 0.554654 days. The magnitude is 22.0 Vo. 

The Voyager 2 discovered this moon when it was out there. This moon is Proteus.

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PROTEUS:
       Proteus, the sixth moon of Neptune, is one of the darkest moons in the solar system. It reflects only 6 percent of the sunlight that strikes it. Proteus is 400 km in diameter, It orbits Neptune from 92,800 km away, making one revolution every 26 hours, 54 minutes. Scientists say Proteus is almost as large as a moon can be without its shape being altered by its own gravity. It circles Neptune in the same direction as the planet rotates. Proteus was discovered by Stephen Synnott in 1989. Proteus' magnitude is 20.3 Vo. The abundance of craters points to a history of repeated battering by planetesimals.
       Proteus is irregularly shaped and shows no sign of any geological modification. It circles the planet in the same direction as Neptune rotates, and remains close to Neptune's equatorial plane.

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