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There are five Lagrange points for the Sun–Earth system, and five different Lagrange points for the Earth–Moon system. L 1 , L 2 , and L 3 are on the line through the centers of the two large bodies, while L 4 and L 5 each act as the third vertex of an equilateral triangle formed with the centers of the two large bodies.
L 4 is the Sun–Earth Lagrange point located close to the Earth's orbit 60° ahead of Earth. Asteroid (706765) 2010 TK 7 is the first discovered tadpole orbit companion to Earth, orbiting L 4 ; like Earth, its mean distance to the Sun is about one astronomical unit .
Lagrange point colonization is a proposed form of space colonization [1] of the five equilibrium points in the orbit of a planet or its primary moon, called Lagrange points. The Lagrange points L 4 and L 5 are stable if the mass of the larger body is at least 25 times the mass of the secondary body. [2] [3] Thus, the points L 4 and L 5 in the ...
The orbits for two of the points, L 4 and L 5, are stable, but the halo orbits for L 1 through L 3 are stable only on the order of months. In addition to orbits around Lagrange points, the rich dynamics that arise from the gravitational pull of more than one mass yield interesting trajectories, also known as low energy transfers. [4]
File:Lagrange_points.jpg licensed with PD-USGov-NASA 2007-02-05T15:12:14Z EnEdC 489x419 (63271 Bytes) also move L4, L5 out; 2006-06-29T00:37:13Z EnEdC 489x419 (63290 Bytes) Moved L3 left slightly. 2006-03-31T17:53:47Z Mlm42 479x419 (49888 Bytes) A contour plot of the effective potential of a two-body system. It clearly shows the 5-lagrange points.
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English: Diagram of Lagrange points in a system where the primary is much more massive than the secondary (e.g. Sun–Earth). Date 5 February 2007 (upload date)
Here, too, as with Hermann Oberth, production on the Moon, the use of an electromagnetic Moon slingshot (lunar coilgun) and the transport of the components from the Moon to the Lagrange point 1 between the Earth and the Sun are discussed by means of electric spaceships (alternatively with sun sails) assumed. The authors refer to the many ...