From: utzoo!decvax!cca!csin!cjh@CCA-UNIX@sri-unix Newsgroups: net.space Title: re: lagrange points Article-I.D.: sri-unix.1675 Posted: Tue Jun 8 09:21:20 1982 Received: Wed Jun 9 01:12:31 1982 Sorry...L4 and L5 are the trojan points (+/- 60 degrees in lunar orbit). The ones you describe are in the set L1-L3, which are balanced but not stable; this is why all the colonies are proposed for L5 or 4, leaving the groundhogs wondering what happened to the first three.