Gravity.
Earths Orbit? Earths Orbit?
earths tempertures
Venus
earths tempertures
There is surprisingly little in common between the orbit of an electron and the orbit of a planet. It is magnetism that holds an electron in position and gravity that holds a planet in its orbit. If the electrons orbit was similar to the earths it would be able to loose energy at a constant rate and would crash into the proton. The electron can only loose energy in quantized amounts and is only aloud a canonical ensemble of values.
The earths orbit around the sun is almost circular.
Orbit
Orbit
Oval
oaval
An ellipse.
8600000000mph