Asri-unix.700 net.space utcsrgv!utzoo!decvax!ucbvax!ARPAVAX:C70:sri-unix!LRC.SLOCUM@UTEXAS-20 Fri Feb 5 11:16:18 1982 horseshoe orbits I'm sure there will be plenty of other replies on this, but... The word "horseshoe" may be unfortunate. But imagine TWO of them, ends-to-ends, one slightly larger than the other. That's what is meant. The satellites do not reverse their course; they merely exchange orother. That's what is meant. The satellites do not reverse their course; they merely exchange orbits. As the lower one catches up with the higher one, their mutual gravitational attraction acts to accelerate the former and retard the latter; the lower one thus moves into a higher orbit, and the higher one, into a lower orbit. They continue on their merry ways until the next encounter/dance. Actually, it surely takes several revolutions til the ne
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