# IO, Moon of Jupiter

**IO** is a Moon that orbits round Jupiter rather than the Sun which our Earth orbits round. Its orbit circumference, the total distance it travels round its planetary parent is 2,650,236.42 km. The furthest it gets from its orbital parent (apoasis) is 423,529 km. Its mass is estimated/calculated at being 89,319,379,731,108,900,000,000 kg. Its density has been calculated at being 3.528 g/cm3. Its volume is 3.528 g/cm3. It was discovered in the year 1610 by Galileo Galilei. Its takes 1.769 Earth days to do a full rotation period.

The Semi-Major Axis of the orbit is 421,800 km, which is the furthest point from the centre to the edge of an elliptical point.

The atmospheric gases within the atmosphere of the object are Sulfur dioxide.

The mass of the object is calculated at being 89,319,379,731,108,900,000,000 kg. The equatorial circumference of IO is 11,445.5 km. The mean radius of IO is 1821.6 km. The surface area of IO is 41,698,064.74 km2. The surface gravity of the said item is 1.796 m/s2. The average orbit velocity, that is the speed at which it orbits is 62,423.1 km/h.

The orbital inclination, the angle at which IO orbits in relation to the orbital plane is 0.036 degrees. The orbital eccentricity is 0.0041, it is the degree at which IO orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

## IO Facts

Type | Moon |

Orbital Circumference | 2,650,236.42 km |

Furthest from parent (Apoasis) | 423,529 km |

Mass | 89,319,379,731,108,900,000,000 kg |

Density | 3.528 g/cm3 |

Volume | 25,319,064,907 km3 |

Year of Discovery | 1610 |

Discoverer | Galileo Galilei |

Rotation Period | 1.769 Earth days |

Semi-Major Axis | 421,800 km |

Atmosphere Gasses | Sulfur dioxide |

Mass | 89,319,379,731,108,900,000,000 kg |

Equatorial Circumference | 11,445.5 km |

Mean Radius | 1821.6 km |

Surface Area | 41,698,064.74 km2 |

Surface Gravity | 1.796 m/s2 |

Average Orbit Velocity | 62,423.1 km/h |

Orbital Inclination | 0.036 |

Orbital Eccentricity | 0.0041 |

### Add a Comment