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Iocaste, Moon of Jupiter

Iocaste is a Moon that orbits round the planet Jupiter. Its orbit circumference, the total distance it travels round its planetary parent is 132,096,242.29 km. The furthest it gets from its orbital parent (apoasis) is 25,847,607 km. Its mass is estimated/calculated at being 194,826,896,302,635 kg. Its density has been calculated at being 2.6 g/cm3. Its volume is 74 km3.

Iocaste was discovered on 23 November 2000 by Scott S. Sheppard, David C. Jewitt, Yanga R. Fernandez, and Eugene Magnier.

The orbital period, i.e. the period it takes to complete an orbit round Jupiter is 631.6 days. The figure is also known as the sidereel period. The figure comes from N.A.S.A..

The Semi-Major Axis of the orbit is 21,272,000 km, which is the furthest point from the centre to the edge of an elliptical point.

The equatorial circumference of Iocaste is 16.3 km. The mean radius, that is the average radius of Iocaste is 2.6 (assuming an albedo of 0.04) km. The surface area of Iocaste is 84.95 km2. The surface gravity of the said item is 0.002 m/s2. The average orbit velocity, that is the speed at which it orbits is 8,714.4 km/h.

The orbital inclination, the angle at which Iocaste orbits in relation to the orbital plane is 149.436 degrees. The orbital eccentricity is 0.2151, it is the degree at which Iocaste orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Ananke Moon Group

Ananke group of Jovian moons are all believed to have the same source, probably the result of a asteroid collision. The remnants were caught by the immense gravitational pull of Jupiter and remain in orbit ever since. The name derives it name from the largest in the group. All the members of the group orbit in a retrograde orbit hence why they all finish with the letter 'e' in their name.

List of Members in Ananke Group

Iocaste Facts

Orbital Circumference132,096,242.29 km
Furthest from parent (Apoasis)25,847,607 km
Mass194,826,896,302,635 kg
Density2.6 g/cm3
Volume74 km3
Orbital DirectionRetrograde, opposite to the parents direction
Date of Discovery23 November 2000
DiscovererScott S. Sheppard, David C. Jewitt, Yanga R. Fernandez, and Eugene Magnier
Orbital Period631.6
Semi-Major Axis21,272,000 km
Equatorial Circumference16.3 km
Mean Radius2.6 (assuming an albedo of 0.04) km
Surface Area84.95 km2
Surface Gravity0.002 m/s2
Average Orbit Velocity8,714.4 km/h
Orbital Inclination149.436
Orbital Eccentricity0.2151

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