t3hjs t1_j9z83n5 wrote on February 25, 2023 at 5:32 PM

Reply to comment by valcatosi in Euclid space telescope launch scheduled for July — ESA mission to chart a 3D map of the universe, in search of dark matter and dark energy by marketrent

So If I understand you right, the satellites dont sit stationary on the exact point.

Instead they orbit around the point, and thats possible because there is a circle (ellipse?) you can draw around the Earth-Sun L2 point that is equipotential, due to the radially symmetric pull of the Earth-Sun (if radius is defined as a perpendicular to an axis straight through the Earth and Sun)

valcatosi t1_j9z9qz1 wrote on February 25, 2023 at 5:43 PM

Yeah, that's essentially it. Here's an ESA presentation that goes into a little more detail, since as you've guessed it's slightly more complicated: https://www.esa.int/Enabling_Support/Operations/Libration_point_orbits

[deleted] t1_j9ze3v2 wrote on February 25, 2023 at 6:11 PM

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