| |
Galatea (gal'-É™-tee'-É™, IPA , Greek Î"αÎ"αÏ"εία), or Neptune VI, is the fourth known moon of Neptune. It is named after Galatea, one of the Nereids of Greek legend.
Galatea
Related Category: Astronomy: General
in astronomy, one of the natural satellites, or moons, of Neptune.
Galatea
Neptune VI - 1989N4
Galatea [gal-eh-TEE-eh] lies 37,200 kilometers (23,100 miles) from Neptune. It has a diameter of 180 kilometers (110 miles) and completes an orbit in 10 hours, 18 minutes.
Galatea
Neptune VI
Galatea ("gal eh TEE eh") is the fourth of Neptune's known satellites: orbit: 62,000 km from Neptune diameter: 158 km mass: ?
GALATEA
Galatea is a tiny moon of . It was discovered using NASA's Voyager 2 mission in 1989. It orbits 61,950 km from the center of Neptune and is about 158 km in diameter.
Galatea was a Sicilian who was loved by the Cyclops Polyphemus.
Outer Moons
Larissa ...
5. Galatea
6. Larissa
7. Proteus
Viewing Guide
The fourth-largest planet in the solar system is so far away that you need a telescope to find it. Neptune stages its best appearance in August.
The names Galatea and Larissa were controversial since asteroids previously had been given those names. Names are assigned by the nomenclature committee of the International Astronomical Union (IAU).
Galatea (NASA Thesaurus) A natural satellite of Saturn, orbiting at a mean distance of 62,000 kilometers.
Galatea
Larissa
Proteus
Triton
Nereid
Neptune is the eighth or, occasionally, the ninth planet from the Sun due to Pluto's eccentric orbit, and the outermost gas giant in our solar system.
La Fábula de Polifemo y Galatea
La F?bula de Polifemo y Galatea , or simply the s:es:F?bula de Polifemo y Galatea, is a literary work written by Spanish poet Luis de G?ngora y Argote....
The small satellites Galatea and Despina orbit Neptune just planetward of 1989N1R and 1989N2R, respectively, and may gravitationally repel particles near the inner edges of these rings.
Voyager 2 discovered six new ones, which are named Naiad, Galatea, Thalassa, Larissa, Proteus, and Despina. Since then, five more were discovered but have yet to be named. Either way, this gives us a grand total of 13 satellites.
Neptune has eight known moons: Triton, Thalassa, Naiad, Despina, Galatea, Larissa, Proteus and Nereid.
Voyager 2 spacecraft visited Neptune on August 25, 1989.
Neptune was named after the Roman god of the sea.
A narrow ring containing the arcs. It shows a radial wiggles due to perturbations from nearby Galatea.
Inner Satellites of Neptune
Name Semimajor Axis (km) Period (days) Eccentricity Inclination (deg) Mean Radius (km) Mass (10^20 kg)
Naiad ...
The first four moons of Neptune, Naiad, Thalassa, Despina, and Galatea, are so close to Neptune that they orbit within its ring system. Little is known about them.
Neptune's innermost four moons, Naiad, Thalassa, Despina, and Galatea, orbit close enough to be within Neptune's rings. The next farthest out, Larissa was originally discovered in 1981 when it had occulted a star.
Some asteroids share the same names as moons of Neptune: 74 Galatea, 1162 Larissa. See also Name conflicts of solar system objects.
Neptune's moons
Size Mean distance from Neptune
Triton 2,720km 353,000km
Proteus 400km 92,000km
Larissa 190km 48,800km
Galatea 180km 37,200km
Nereid 169km 5,560,000km
Despina 150km 27,700km
Thalassa 80km 25,200km
Naiad 54km 23,200km ...
So far, eight moons have been discovered orbiting Neptune. They are (from nearest the planet to furthest): Naiad, Thalassa, Despina, Galatea, Larissa, Proteus, Triton and Nereid.
Revolution time around sun ... 164 years (60,189 d)
Orbital velocity ............. 3.38 miles/second
Number of Moons .............. 8, Triton, Nereid, Naiad, Thalassa, Despina, Galatea, Larissa, Proteus.
 See also: Neptune, Orbit, Earth, Solar, Planet
|
