- The Lagrangian points L1, L2, L3 are not stable. A satellite positioned there would require constant positions corrections: complex satellite. L4 and L5 are stable.
- When n L points are populated and you want to populate another L point, you have to solve an (n+2)-body problem. This becomes extremely complex.
- L4 and L5 are about the same distance from Earth as the moon: EME type complications for communications.
http://www.physics.montana.edu/faculty/cornish/lagrange.pdf
http://www.physics.montana.edu/faculty/cornish/lagrange.html
http://en.wikipedia.org/wiki/Lagrangian_point
http://www.esa.int/esaSC/SEMM17XJD1E_index_0.html
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of w7lrd@comcast.net Sent: January 12, 2007 08:07 To: amsat-bb@amsat.org Subject: [amsat-bb] Lanrangian points
Hello Amsat'ers Is it possible or practical to have a communications satellite at the L1 or L2 points. 73 Bob W7LRD Seattle _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb