How fast does the earth rotate around the sun compared to mars and the other plants in are solar system?
Technically, the term is, “revolve” around the sun. (“Rotate” means to spin on its own axis.) The earth revolves around the sun at an average rate of about 30 kilometers per second (about 18.5 miles per second). That means it moves a distances equal to its own diameter in a little over 7 minutes. Planets farther from the sun revolve slower; planets closer to the sun revolve faster. Their speed is inversely proportional to the square root of their distance from the sun. You can use this formula: V_planet = V_earth ⁄ sqrt(R_planet) Where R_planet is the planet’s distance from the sun, measured in astronomical units. For Mars (R_mars = 1.52): V_mars = V_earth ⁄ sqrt(1.