History of Lagrangian point

	Revision 15 . . December 4, 2001 10:01 pm by Paul Drye [Put back in the "but differing" that Xaonon took out. It's a critical part of the definition!]
	Revision 14 . . (edit) December 2, 2001 3:52 am by Bryan Derksen [Dione and Helene]
	Revision 13 . . (edit) December 2, 2001 3:28 am by The Epopt
	Revision 12 . . (edit) December 2, 2001 3:24 am by The Epopt
	Revision 11 . . (edit) November 24, 2001 10:17 am by Wayne Hardman
	Revision 10 . . November 24, 2001 10:17 am by Wayne Hardman
	Revision 9 . . November 24, 2001 10:16 am by Wayne Hardman
	Revision 8 . . November 24, 2001 6:10 am by (logged).128.164.xxx [Telesto and Calypso]
	Revision 7 . . November 24, 2001 5:50 am by (logged).92.168.xxx
	Revision 6 . . (edit) November 14, 2001 6:39 am by Bryan Derksen [SOHO's full name]

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A Lagrangian point (or L-point) is one of five positions in space where the gravitational field of two bodies of substantial mass interact to form a point at which a third body of negligible mass can be positioned stably. Bodies at the L-point will not move relative to the parent bodies if they are not perturbed by other gravitational forces. They are sometimes also referred to as libration points.

A Lagrangian point (or L-point) is one of five positions in space where the gravitational field of two bodies of substantial but differing mass interact to form a point at which a third body of negligible mass can be positioned stably. Bodies at the L-point will not move relative to the parent bodies if they are not perturbed by other gravitational forces. They are sometimes also referred to as libration points.