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Deimos, Moon of Mars

Deimos is a Moon that orbits round Mars rather than the Sun which our Earth orbits round. Its orbit circumference, the total distance it travels round its planetary parent is 147,390.96 km. The furthest it gets from its orbital parent (apoasis) is 23,463 km. Its mass is estimated/calculated at being 1,476,188,406,600,740 kg. Its density has been calculated at being 1.471 g/cm3. Its volume is 1.471 g/cm3. It was discovered in the year 1877 by A. Hall. Its takes 1.2624 Earth days to do a full rotation period.

The Semi-Major Axis of the orbit is 23,458 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 1,476,188,406,600,740 kg. The equatorial circumference of Deimos is 39.0 km. The mean radius of Deimos is 6.2 km. The surface area of Deimos is 483.05 km2. The surface gravity of the said item is 0.003 m/s2. The average orbit velocity, that is the speed at which it orbits is 4,864.8 km/h.

The orbital inclination, the angle at which Deimos orbits in relation to the orbital plane is 1.788 degrees. The orbital eccentricity is 0.0002, it is the degree at which Deimos orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Image of the Mars moon of Deimos


Image of the Mars moon of Deimos

Deimos Facts


TypeMoon
Orbital Circumference147,390.96 km
Furthest from parent (Apoasis)23,463 km
Mass1,476,188,406,600,740 kg
Density1.471 g/cm3
Volume998 km3
Year of Discovery1877
DiscovererA. Hall
Rotation Period1.2624 Earth days
Semi-Major Axis23,458 km
Mass1,476,188,406,600,740 kg
Equatorial Circumference39.0 km
Mean Radius6.2 km
Surface Area483.05 km2
Surface Gravity0.003 m/s2
Average Orbit Velocity4,864.8 km/h
Orbital Inclination1.788
Orbital Eccentricity0.0002

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