# Galatea, Moon of Neptune

**Galatea** is a Moon that orbits round Neptune rather than the Sun which our Earth orbits round. Its orbit circumference, the total distance it travels round its planetary parent is 389,262.18 km. The furthest it gets from its orbital parent (apoasis) is 61,959 km. Its mass is estimated/calculated at being 3,746,671,082,742,980,000 kg. Its density has been calculated at being 1.3 g/cm3. Its volume is 1.3 g/cm3. It was discovered in the year 1989 by S. Synnott, Voyager 2.

The Semi-Major Axis of the orbit is 61,953 km, which is the furthest point from the centre to the edge of an elliptical point.

The mass of the object is calculated at being 3,746,671,082,742,980,000 kg. The equatorial circumference of Galatea is 552.9 km. The mean radius of Galatea is 88.0 km. The surface area of Galatea is 97,313.97 km2. The surface gravity of the said item is 0.032 m/s2. The average orbit velocity, that is the speed at which it orbits is 37,807.1 km/h.

The orbital eccentricity is 0.0001, it is the degree at which Galatea orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

## Galatea Facts

Type | Moon |

Orbital Circumference | 389,262.18 km |

Furthest from parent (Apoasis) | 61,959 km |

Mass | 3,746,671,082,742,980,000 kg |

Density | 1.3 g/cm3 |

Volume | 2,854,543 km3 |

Year of Discovery | 1989 |

Discoverer | S. Synnott, Voyager 2 |

Semi-Major Axis | 61,953 km |

Mass | 3,746,671,082,742,980,000 kg |

Equatorial Circumference | 552.9 km |

Mean Radius | 88.0 km |

Surface Area | 97,313.97 km2 |

Surface Gravity | 0.032 m/s2 |

Average Orbit Velocity | 37,807.1 km/h |

Orbital Eccentricity | 0.0001 |

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