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Orthosie, Moon of Jupiter

Orthosie is a Moon that orbits round the planet Jupiter. It is also know by other designations, JXXXV, S/2001 J9. Its mass is estimated/calculated at being 14,986,684,330,972 kg. Its density has been calculated at being 2.6. Its volume is 4.

Orthosie was discovered on 11 December 2001 by Scott S. Sheppard, David C. Jewitt and Jan T. Kleyna.

The orbital period, i.e. the period it takes to complete an orbit round Jupiter is 622.6 days. The figure is also known as the sidereel period. The figure comes from N.A.S.A..

The Equatorial Radius of the object is 1km. The Equatorial Radius is based on the assumption of the Albedo value. The value is the radius in km of the said object at the Equator.

The albedo of the object is 0.04. The Albedo is the amount of radiation that is reflected back into space by the object.

The Escape Velocity of the object is 5 km/h. The Escape Velocity is the speed an object needs to be travelling in order to break free from the objects gravity. The larger an object is, the more velocity (speed) is needed to break free from the object.The Semi-Major Axis of the orbit is 20720, which is the furthest point from the centre to the edge of an elliptical point.

The equatorial circumference of Orthosie is 6.3 km. The surface area of Orthosie is 12.57. The surface gravity of the said item is 0.001. The Mean orbit velocity, that is the speed at which it orbits is 8725.50 km/h. The is the average distance in km of the object is from its parent 21164000.00.

The orbital inclination, the angle at which Orthosie orbits in relation to the orbital plane is 145.9 degrees. The orbital eccentricity is 0.278, it is the degree at which Orthosie 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

Orthosie Facts


TypeMoon
DesignationsJXXXV, S/2001 J9
Mass (kg)14,986,684,330,972
Density (g/cm^3)2.6
Volume (km^3)4
Orbital DirectionRetrograde, opposite to the parents direction
Date of Discovery11 December 2001
DiscovererScott S. Sheppard, David C. Jewitt and Jan T. Kleyna
Orbital Period (days)622.6
Equatorial Radius (km)1
Albedo0.04
Escape Velocity (km/h)5
Semi-Major Axis (10^3 km)20720
Equatorial Circumference (km)6.3
Surface Area (km^2)12.57
Surface Gravity (m/s^2)0.001
Mean Orbit Velocity (km/h)8725.50
Average Orbit Distance (km)21164000.00
Orbital Inclination (degrees)145.9
Orbital Eccentricity0.278
Source(s)https://solarsystem.nasa.gov/moons/jupiter-moons/orthosie/in-depth/
https://nssdc.gsfc.nasa.gov/planetary/factsheet/joviansatfact.html


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