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Leda, Moon of Jupiter

Leda is a Moon that orbits round the planet Jupiter. Its orbit circumference, the total distance it travels round its planetary parent is 69,679,979.34 km. The furthest it gets from its orbital parent (apoasis) is 12,991,594 km. Its mass is estimated/calculated at being 10,940,279,561,609,500 kg. Its density has been calculated at being 2.6 g/cm3. Its volume is 4,189 km3.

Leda was discovered on 14 September 1974 by Charles T. Kowal.

The orbital period, i.e. the period it takes to complete an orbit round Jupiter is 240.93 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 11,165,000 km, which is the furthest point from the centre to the edge of an elliptical point.

The equatorial circumference of Leda is 62.8 km. The mean radius, that is the average radius of Leda is 10.0 (assuming an albedo of 0.04) km. The surface area of Leda is 1,256.64 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 12,051.0 km/h.

The orbital inclination, the angle at which Leda orbits in relation to the orbital plane is 27.457 degrees. The orbital eccentricity is 0.1636, it is the degree at which Leda orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Legend of Leda

Leda was once a queen of Sparta and married to King Tyndareus. Leda was seduced by Zeus who had tricked her. The result would be two children Pollux and Helen. Another story has Zeus seduced nemesis who was a goose at the time where Zeus was a swan. The result of the seduction was an egg. The egg was brought to Leda where it hatched and Helen was born. Leda would raise Helen as her child. Theoi

Himalia Moon Group

The moon is a member of the Himalia group of Jovian Moons. All four Himalia moons in the group orbit in a prograde direction, this means they orbit in the same direction as Jupiter. They are all believed to be from the same source, possibly the remnants of an asteroid that got broken up in a collision. Himalia is the largest member of the group therefore it is the one that the group is named after. It takes just over two thirds the time the moon takes to orbit the Earth as Himalia takes to orbit Jupiter. NASA

List of Members in Himalia Group

Leda Facts


TypeMoon
Orbital Circumference69,679,979.34 km
Furthest from parent (Apoasis)12,991,594 km
Mass10,940,279,561,609,500 kg
Density2.6 g/cm3
Volume4,189 km3
Orbital DirectionPrograde, same as the parents direction
Date of Discovery14 September 1974
DiscovererCharles T. Kowal
Orbital Period240.93
Semi-Major Axis11,165,000 km
Equatorial Circumference62.8 km
Mean Radius10.0 (assuming an albedo of 0.04) km
Surface Area1,256.64 km2
Surface Gravity0.007 m/s2
Average Orbit Velocity12,051.0 km/h
Orbital Inclination27.457
Orbital Eccentricity0.1636


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