LAGRANGE POINT

SCIENCE AND TECHNOLOGY 

Lagrange points often denoted as L-points, are pivotal positions in space situated over a million kilometres away from earth. These points primarily L1, showcase an intricate celestial dance where earth’s and sun’s gravitational fields harmonize. Named after mathematician Joseph– Louis Lagrange, these locations offer stability to spacecraft, effectively anchoring in space.

These points become strategic for spacecraft to conserve fuel while maintaining their positions. Notably satellites placed into a halo orbit around L1 enjoy uninterrupted views of sun without eclipses, rendering them invaluable for solar observations and scientific missions.

ISRO’s Adithya L1 is going to be placed at the L1 point. The joint mission of NASA & ESA – SOHO is already placed here.

The L2  point  is  known  for  the  placement  of  James  Web  Telescope  of  NASA

which is an infrared astronomy

L3 lies behind the sun, opposite of sun which is not directly observable from the earth. It has the potential to observe the far side of the sun

L4 AND L5 are resistant to gravitational  perturbations,  because  of  which  dusts and asteroids are accumulated in these points