ABOUT LAGRANGE POINT ORBITS
Lagrange Point Orbits are trajectories around the five equilibrium points in the Sun-Earth or Earth-Moon system where gravitational and centrifugal forces balance. L1, L2, and L3 are unstable and require station-keeping, while L4 and L5 (Trojan points) are stable. These orbits are used for solar observation, space telescopes, and proposed space habitats.
ORBITAL PARAMETERS
| Altitude (Min) | 1,500,000 km |
| Altitude (Max) | 1,500,000 km |
| Inclination | N/A° |
| Orbital Period | 525960 minutes |
| Orbital Velocity | 0.01-0.5 km/s |
| Delta-V Required | 3.4 km/s |
| Eccentricity | N/A |
| Category | Lagrange Point |
EQUATION / FORMULA
Jacobi constant: CJ = -2E – Ω²(x² + y²)
ADVANTAGES & DISADVANTAGES
ADVANTAGES
Stable vantage points, minimal fuel for station-keeping at L4/L5, unique observation geometry
DISADVANTAGES
L1-L3 are unstable, far from Earth for servicing, complex three-body dynamics
HISTORY
| Discoverer / Pioneer | Joseph-Louis Lagrange (1772) |
| First Use | August 12, 1978 |
ALTITUDE CONVERSIONS (MIN)
| Kilometers | 1,500,000 km |
| Miles | 932,057 mi |
| Nautical Miles | 809,936 nmi |
TYPICAL PAYLOADS (3)
SATELLITE CONSTELLATIONS (4)
