A map of the Mid-Atlantic Ridge. The Mid-Atlantic Ridge (MAR) is a mid-ocean ridge, a divergent tectonic plate or constructive plate boundary located along the floor of the Atlantic Ocean, and part of the longest mountain range in the world.
Since the distances are so large, we usually express them in Astronomical Units (AU). (An AU is the average distance from Earth to the Sun, about 150 million kilometers or 93 million miles.) The table below lists the distance of each planet from the Sun in AU. (Numbers were taken from this page.)
The average distance from the Sun to the Earth is 150 million kilometers which can be written as 150 x 10^6 Km. CME's can vary in speed. They can range from 200 km/s to 1000 km/s, although typically, most of them travel at about 424 km/s (Avg 1996-1998 speed St. Cyr et al., 2000).ne also has to take into account the fact that the Sun itself is rotating, about once every 25 days at the equator. Since the Earth is also revolving in the same direction, it makes it look like the Sun takes a little bit longer to rotate, about 27 days. This produces a doppler effect of up to 2 kilometers per second.