Question

Why is the earth's orbit elliptical?

Answer 1

If the Earth were to orbit the Sun in a circle, with the Sun as its centre, the Earth's speed around the Sun would be constant. We can think of this as the Earth's average speed. However, because the Earth's orbit is elliptical, the speed of the Earth varies throughout the year.

Answer 2

If the earth were to orbit the sun in a circle, with the sun as its centre, the earth's Speed around the sun would be constant. We can think of this as the earth average speed. However because the earth orbit elliptical the speed of the various