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Adrastea, Moon of Jupiter

Adrastea is a Moon that orbits round the planet Jupiter. Its orbit circumference, the total distance it travels round its planetary parent is 810,530.25 km. The furthest it gets from its orbital parent (apoasis) is 129,232 km. Its mass is estimated/calculated at being 7,493,342,165,485,970 kg. Its density has been calculated at being 3 g/cm3. Its volume is 2,310 km3. It was discovered in the year 1979 by D. Jewitt,. Its orbital period, i.e. the period it takes to complete an orbit round Jupiter is 0.298 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 129,000 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 7,493,342,165,485,970 kg. The equatorial circumference of Adrastea is 51.5 km. The mean radius of Adrastea is 8.2 km. The surface area of Adrastea is 844.96 km2. The surface gravity of the said item is 0.007 m/s2. The average orbit velocity, that is the speed at which it orbits is 113,329.2 km/h.

The orbital inclination, the angle at which Adrastea orbits in relation to the orbital plane is 0.054 degrees. The orbital eccentricity is 0.0018, it is the degree at which Adrastea orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Adrastea Facts

Orbital Circumference810,530.25 km
Furthest from parent (Apoasis)129,232 km
Mass7,493,342,165,485,970 kg
Density3 g/cm3
Volume2,310 km3
Year of Discovery1979
DiscovererD. Jewitt,
Orbital Period0.298
Semi-Major Axis129,000 km
Mass7,493,342,165,485,970 kg
Equatorial Circumference51.5 km
Mean Radius8.2 km
Surface Area844.96 km2
Surface Gravity0.007 m/s2
Average Orbit Velocity113,329.2 km/h
Orbital Inclination0.054
Orbital Eccentricity0.0018

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