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Umbriel, Moon of Uranus

Umbriel is a Moon that orbits round the planet Uranus. Its orbit circumference, the total distance it travels round its planetary parent is 1,671,320.94 km. The furthest it gets from its orbital parent (apoasis) is 267,037 km. Its mass is estimated/calculated at being 1,221,414,772,974,210,000,000 kg. Its density has been calculated at being 1.459 g/cm3. Its volume is 837,313,109 km3. It was discovered in the year 1851 by W. Lassell. Its orbital period, i.e. the period it takes to complete an orbit round Uranus is 4.144 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 266,000 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 1,221,414,772,974,210,000,000 kg. The equatorial circumference of Umbriel is 3,673.8 km. The mean radius of Umbriel is 584.7 km. The surface area of Umbriel is 4,296,116.52 km2. The surface gravity of the said item is 0.238 m/s2. The average orbit velocity, that is the speed at which it orbits is 16,804.6 km/h.

The orbital inclination, the angle at which Umbriel orbits in relation to the orbital plane is 0.128 degrees. The orbital eccentricity is 0.0039, it is the degree at which Umbriel orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Image of the Uranus moon of Umbriel

Image of the Uranus moon of Umbriel

Umbriel Facts

Orbital Circumference1,671,320.94 km
Furthest from parent (Apoasis)267,037 km
Mass1,221,414,772,974,210,000,000 kg
Density1.459 g/cm3
Volume837,313,109 km3
Year of Discovery1851
DiscovererW. Lassell
Orbital Period4.144
Semi-Major Axis266,000 km
Mass1,221,414,772,974,210,000,000 kg
Equatorial Circumference3,673.8 km
Mean Radius584.7 km
Surface Area4,296,116.52 km2
Surface Gravity0.238 m/s2
Average Orbit Velocity16,804.6 km/h
Orbital Inclination0.128
Orbital Eccentricity0.0039

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