Are there a satellites on neptune?

Answer 1

Mass Radius Mean density Visual geometric albedo

(1020 kg) (km) (kg/m3)

Naiad (NIII) 0.002 48 x 30 x 26 0.07

Thalassa (NIV) 0.004 54 x 50 x 26 0.09

Despina (NV) 0.02 90 x 74 x 64 0.09

Galatea (NVI) 0.04 102 x 92 x 72 0.08

Larissa (NVII) 0.05 108 x 102 x 84 0.09

Proteus (NVIII) 0.5 220 x 208 x 202 0.10

Triton (NI) 214. 1,353.4 2,050 0.76

Nereid (NII) 0.3 170 0.16

Neptune has 13 known satellites.

Answer 2

Neptune has 13 moons. Triton, Nereid, Proteus, Naiad, Thalassa, Despina, Galatae, larissa and more. There are 5 more moons that have been found more recently. 4 of them were discovered in 2002, whilst the other was discovered in 2003. The newest moons do not have names yet.

More Details =

Neptune's largest moon is Triton, which is actually one of the largest moons in the Solar System. Triton was first discovered by William Lassell just 17 days after Neptune itself was discovered.

It took another 100 years for Neptune's second moon, Nereid, to be discovered. Nereid was discovered by Gerard P. Kuiper, who the Kuiper Belt is named after.

And that's all the moons that astronomers thought Neptune had until 1981 when its third moon, Larissa, was discovered.

Astronomers lost track of Larissa until NASA's Voyager 2 spacecraft flew past Neptune in 1989. Voyager 2 found Larissa again, and discovered 5 additional inner moons: Naiad, Thalassa, Despina, Galatea and Proteus. After Voyager 2′s flyby was complete, the total for Neptune's moons rose to 8.

And then in 2002 and 2003, astronomers uncovered 5 additional moons circling Neptune using Earth observatories. The newly discovered moons were named Halimede, Sao, Psamathe, Laomedeia, and Neso.

And that's how we reached the current total of 13 moons for Neptune.

Of course, if you ask the question again in a few years, it might be higher, since astronomers are working to uncover new moons around the planets all the time.

Answer 3

Yes. Neptune has 14 known moons. No man-made object has orbited Neptune, though the Voyager 2 space probe flew by it in 1989.