# Hyperion, Moon of Saturn

Hyperion was one of the first moons to be discovered that was not spherical in shape. The largest non-spherical moon title goes to Proteus which one of the moons of Neptune.

**Hyperion** is a Moon that orbits round Saturn rather than the Sun which our Earth orbits round. Its orbit circumference, the total distance it travels round its planetary parent is 9,429,377.34 km. The furthest it gets from its orbital parent (apoasis) is 1,535,756 km. Its mass is estimated/calculated at being 5,585,537,250,153,240,000 kg. Its density has been calculated at being 0.544 g/cm3. Its volume is 0.544 g/cm3. It was discovered in the year 1848 by W. & G. Bond, W. Lassell.

The Semi-Major Axis of the orbit is 1,500,934 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 5,585,537,250,153,240,000 kg. The equatorial circumference of Hyperion is 848.2 km. The mean radius of Hyperion is 135.0 km. The surface area of Hyperion is 229,022.10 km2. The surface gravity of the said item is 0.020 m/s2. The average orbit velocity, that is the speed at which it orbits is 18,462.9 km/h.

The orbital inclination, the angle at which Hyperion orbits in relation to the orbital plane is 0.615 degrees. The orbital eccentricity is 0.232, it is the degree at which Hyperion orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

## Hyperion Facts

Type | Moon |

Orbital Circumference | 9,429,377.34 km |

Furthest from parent (Apoasis) | 1,535,756 km |

Mass | 5,585,537,250,153,240,000 kg |

Density | 0.544 g/cm3 |

Volume | 10,305,995 km3 |

Year of Discovery | 1848 |

Discoverer | W. & G. Bond, W. Lassell |

Semi-Major Axis | 1,500,934 km |

Mass | 5,585,537,250,153,240,000 kg |

Equatorial Circumference | 848.2 km |

Mean Radius | 135.0 km |

Surface Area | 229,022.10 km2 |

Surface Gravity | 0.020 m/s2 |

Average Orbit Velocity | 18,462.9 km/h |

Orbital Inclination | 0.615 |

Orbital Eccentricity | 0.232 |