Eris is a Kuiper Belt object, a large rock that orbits round outside the orbit of Neptune. It has been categorised as a Trans-Neptunian object. It was discovered on 21st October 2003 by M. E. Brown, C. A. Trujillo and D. Rabinowitz . Its takes 8 hours to do a full rotation period.
The Aphelion of the object is 14,594,512,904 km A.U. which is the point in the orbit that is furthest from the object that it is orbit. At this point, it will then return back to the orbit target. The Perihelion of the object is 5,765,732,799 km A.U. which is the point in the orbit that is closest to the object that it is orbit around.
The Semi-Major Axis of the orbit is 10,180,122,852 km, which is the furthest point from the centre to the edge of an elliptical point.
The orbital inclination, the angle at which Eris orbits in relation to the orbital plane is 46.87 degrees.
|Type||Kuiper Belt Object|
|Date of Discovery||21st October 2003|
|Discoverer||M. E. Brown, C. A. Trujillo and D. Rabinowitz|
|Rotation Period||8 hours|
|Aphelion (Furthest)||14,594,512,904 km A.U.|
|Perihelion (Nearest)||5,765,732,799 km A.U.|
|Semi-Major Axis||10,180,122,852 km|