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pmMeAllofIt t1_j527nft wrote on January 19, 2023 at 9:46 PM

Reply to comment by sault18 in Are Two Tidally Locked Earth in One Solar System Possible? by Thirdy-DOg

L4/5 isn't stable for larger object. If Theia collected enough mass it would nudge itself out without the help of other bodies of mass. Being about 10% Earth's mass in the Sun-Earth L4/5 points I believe.