Which of these is the length of the earth's orbit?

If the Earth's orbit were a circle, the length of the orbit would be the circumference, C=2 pi r. 2 * pi * (149 600 000 kilometers) ≈ 940,000,000 kilometers In miles the mean radius is 93,000,000 miles → length is approx 2 × π × 93,000,000 ≈ 584,000,000 miles. read more

If the orbit of Earth around the Sun was a perfect circle, it would be about 584,000,000 miles. It isn't a perfect circle, and is more elliptical, so. read more

Elliptical Orbit: Next, there is the nature of the Earth’s orbit. Rather than being a perfect circle, the Earth moves around the Sun in an extended circular or oval pattern. This is what is known as an “elliptical” orbit. read more