This article is about the unit of length.The grey line indicates the Earth–Sundistance, which on average is about 1 astronomical unit. Using the circumference distance between the two observations, Cassini calculated the Earth–Mars distance, then used Kepler's laws to determine the Earth–Sundistance. Explore the distancebetweenEarthandtheSun, which is 93 million miles. Discover fascinating solar system facts! These variations affect the distancebetweenEarthandtheSun.When Earth’s orbit is at its most elliptic, about 23 percent more incoming solar radiation reaches Earth at our planet’s closest approach to theSun each year than does at its farthest departure from theSun. Earth is closest to theSun in January (perihelion); in July, it is farthest away (aphelion). Aphelion and perihelion dates for 2026, 2027, and other years. While Earth orbits thesun, the planet is simultaneously spinning around an imaginary line called an axis that runs through the core, from the North Pole to the South Pole. It takes Earth 23.934 hours to complete a rotation on its axis and 365.26 days to complete an orbit around thesun... DistanceBetweenSun & Earth Mentioned in Hanuman Chalisa : According to Records, For the first time in 1672, Jean Richer and Giovanni Domenico Cassini measured the distancebetweenEarthandSun as 22,000 times of Earth Radii.( Earth’s Radius is 6,371 Kms). Earth orbits thesun in an ellipse, resulting in a yearly variation in distance. The Earth is closest to thesun at perihelion and farthest away at aphelion. While this variation does have minor influences on climate and solar radiation, it is not the primary cause of the seasons.