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Himalia, Moon of Jupiter

Himalia is a Moon that orbits round the planet Jupiter. Its orbit circumference, the total distance it travels round its planetary parent is 71,534,999.03 km. The furthest it gets from its orbital parent (apoasis) is 13,321,120 km. Its mass is estimated/calculated at being 6,744,007,948,937,370,000 kg. Its density has been calculated at being 2.6 g/cm3. Its volume is 2,572,441 km3.

Himalia was discovered on 3 December 1904 by Charles Dillon Perrine.

The orbital period, i.e. the period it takes to complete an orbit round Jupiter is 250.56 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 11,461,000 km, which is the furthest point from the centre to the edge of an elliptical point.

The equatorial circumference of Himalia is 534.1 km. The mean radius, that is the average radius of Himalia is 85.0 (assuming an albedo of 0.04) km. The surface area of Himalia is 90,792.03 km2. The surface gravity of the said item is 0.062 m/s2. The average orbit velocity, that is the speed at which it orbits is 11,895.9 km/h.

The orbital inclination, the angle at which Himalia orbits in relation to the orbital plane is 27.496 degrees. The orbital eccentricity is 0.1623, it is the degree at which Himalia orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Legend of Himalia

Himalia was a nymph in ancient Greek mythology. Himalia was seduced by Zeus when Zeus came to visit Rhodes to subdue Titanes,a Rhodean inhabitant. As a result of the seduction, Himalia had three sons, Spartaios, Kronios and Kytos. 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

Himalia Facts

Orbital Circumference71,534,999.03 km
Furthest from parent (Apoasis)13,321,120 km
Mass6,744,007,948,937,370,000 kg
Density2.6 g/cm3
Volume2,572,441 km3
Orbital DirectionPrograde, same as the parents direction
Date of Discovery3 December 1904
DiscovererCharles Dillon Perrine
Orbital Period250.56
Semi-Major Axis11,461,000 km
Equatorial Circumference534.1 km
Mean Radius85.0 (assuming an albedo of 0.04) km
Surface Area90,792.03 km2
Surface Gravity0.062 m/s2
Average Orbit Velocity11,895.9 km/h
Orbital Inclination27.496
Orbital Eccentricity0.1623

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