Portia is a Moon that orbits round Uranus rather than the Sun which our Earth orbits round. Its orbit circumference, the total distance it travels round its planetary parent is 415,318.55 km. The furthest it gets from its orbital parent (apoasis) is 66,107 km. Its mass is estimated/calculated at being 1,681,505,981,935,050,000 kg. Its density has been calculated at being 1.3 g/cm3. Its volume is 1.3 g/cm3. It was discovered in the year 1986 by S. Synnott, Voyager 2.
The Semi-Major Axis of the orbit is 66,100 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 1,681,505,981,935,050,000 kg. The equatorial circumference of Portia is 424.7 km. The mean radius of Portia is 67.6 km. The surface area of Portia is 57,425.30 km2. The surface gravity of the said item is 0.025 m/s2. The average orbit velocity, that is the speed at which it orbits is 33,732.8 km/h.
The orbital inclination, the angle at which Portia orbits in relation to the orbital plane is 0.059 degrees. The orbital eccentricity is 0.0001, it is the degree at which Portia orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.
|Orbital Circumference||415,318.55 km|
|Furthest from parent (Apoasis)||66,107 km|
|Year of Discovery||1986|
|Discoverer||S. Synnott, Voyager 2|
|Semi-Major Axis||66,100 km|
|Equatorial Circumference||424.7 km|
|Mean Radius||67.6 km|
|Surface Area||57,425.30 km2|
|Surface Gravity||0.025 m/s2|
|Average Orbit Velocity||33,732.8 km/h|