This elliptical orbit is described as an eccentricity that is measured between the numbers 0 and 1. The closer that the eccentricity is to 0, the closer the orbit is to a circle; if it is closer to 1, the orbit resembles an oval.
Earth's orbit is rated as 0.02, which makes it closer to a circle than an oval. Earth's orbit goes around the sun at over 100,000 mph, travelling over 900 million miles. The amount of space days that it takes Earth to make a complete orbit around the sun is 365, which provides the length of a calendar year.Learn more about Planets