// ORBITAL LOGISTICS AND PROPULSION TERM
Lagrange Point
A Lagrange Point is a special location in space where the gravitational forces of two large bodies (like Earth and the Sun) balance out, allowing a smaller object to stay relatively stable.
TECHNICAL DEFINITION
A Lagrange Point (L-point) is one of five specific positions in the orbital configuration of two large co-orbiting bodies (e.g., Sun-Earth, Earth-Moon) where a smaller third body can maintain a stable or semi-stable position relative to the two larger bodies due to balanced gravitational and centrifugal forces.
BACKGROUND
The James Webb Space Telescope (JWST) is a space telescope designed to conduct infrared astronomy. It is the largest telescope in space, and is equipped with high-resolution and high-sensitivity instruments, allowing it to view objects too old, distant, or faint for the Hubble Space Telescope. This enables investigations across many fields of astronomy and cosmology, such as observation of the first stars and the formation of the first galaxies, and detailed atmospheric characterization of potentially habitable exoplanets.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- L-point
- libration point
- equilibrium point
USAGE NOTE
Space telescopes like JWST are often placed at Lagrange Points for stable observation platforms.
DEVELOPERS
Organizations developing technology related to Lagrange Point.
Develops and operates numerous spacecraft for missions to Lagrange points, such as the James Webb Space Telescope (JWST) at the Sun-Earth L2 point and SOHO at L1, utilizing these stable locations for scientific observation.
Designs, develops, and operates missions that leverage Lagrange points for stable orbits, including the Gaia mission at the Sun-Earth L2 point and Lisa Pathfinder which tested technology for future L1 missions.
A prime contractor for major space missions, including the development and construction of the spacecraft bus and sunshield for the James Webb Space Telescope, which operates at the Sun-Earth L2 point.
A leading European aerospace company that develops and manufactures spacecraft for various missions, including the ESA's Gaia mission, which performs astrometric measurements from the Sun-Earth L2 point.
Develops and manufactures spacecraft, instruments, and advanced technologies for civil, commercial, and national security customers, contributing to missions like the James Webb Space Telescope operating at L2.
Developed and launched India's first solar observatory, Aditya-L1, which is positioned at the Sun-Earth L1 Lagrange point to study solar phenomena.
Designs and builds a wide range of advanced spacecraft for scientific exploration and other missions, often involving complex orbital mechanics and trajectory planning that can include leveraging Lagrange points for stable operations.