The distance between the Earth and the Sun changes due to the elliptical shape of the Earth's orbit. The Earth's orbit is not a perfect circle, but rather an ellipse with the Sun at one of the two foci. This means that the distance between the Earth and the Sun varies throughout the year, with the closest point being perihelion and the farthest point being aphelion.
Many people believe the seasons are caused by Earth’s changing distance from the Sun. In fact, the seasons are caused by Earth’s —a 23.5-degree lean of our planet as it orbits the Sun. when is the sun closest to the earth
Conversely, the Earth is farthest from the Sun during an event called . The distance between the Earth and the Sun