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Doing a simple density calculation, I get $$\rho=\frac{0.09M_{\oplus}}{\frac{4}{3}\pi R^3}\approx15.97\text{ grams/cm}^3$$ For comparison, here's a list of the average densities, $\bar{\rho}$, of t...
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#1: Attribution notice removed
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System
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2020-06-01T14:13:48Z (over 4 years ago)
Source: https://worldbuilding.stackexchange.com/a/38253 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/