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In theory (and from a God like perspective putting practical considerations to one side) it should be possible to build a rocky planet of any size you want. The only limiting factor would be when the mass of the planet was so great that the escape velocity exceeded the speed of light and a black hole formed.


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An article from 2016, yes old, stated that it was once thought any planet with a radius about 1.6 that of the Earth would become a gas giant, based the 2015 paper, Leslie A. Rogers, MOST 1.6 EARTH-RADIUS PLANETS ARE NOT ROCKY, The Astrophysical Journal, Volume 801, Number 1. Since then, a rocky exoplanet, TOI 849 b, was discovered in 2020 which supposedly is ...


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Partial: Apparently, APAS-95 had a mass of 286 kg https://www.google.co.uk/books/edition/The_Twenty_first_Century_in_Space/BH7ZBQAAQBAJ?hl=en&gbpv=0


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