Name: Marjorie E Smith
How far away is the Moon from the Earth?
A good "rule of thumb" value to remember is a quarter million miles. More
precisely, the Moon's orbit is elliptical: its average orbital radius is
384401 km, apogee (farthest distance from the Earth) is 406700 km, and
perigee (distance of closest approach to the Earth) is 356400 km.
Extra credit: what do we call the closest and farthest orbital distances of
planets around the Sun? (hint: they begin with peri- and apo-)
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Update: June 2012