However, it's important to note that Earth's orbit is not perfectly circular, but slightly elliptical. So the distance between Earth and the sun varies throughout the year.

* Perihelion: The closest point in Earth's orbit to the sun is about 91.4 million miles (147.1 million km). This occurs in early January.

* Aphelion: The furthest point in Earth's orbit from the sun is about 94.5 million miles (152.1 million km). This occurs in early July.