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I'm going to work off of celtschk's excellent answer, which correctly comes up with a radius of $\sim1.6 R_{\oplus}$ and a density of $\sim2.5\rho_{\oplus}$, where $_{\oplus}$ denotes Earth. If we ...
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#1: Attribution notice removed
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System
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2020-06-01T14:13:49Z (over 4 years ago)
Source: https://worldbuilding.stackexchange.com/a/44926 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/