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## Main Question or Discussion Point

I've read (in wikipedia, at least) that neutron-degenerate matter is unstable in small quantities, and would decay into protons, electrons and antineutrinos.

Is there any generally accepted estimate for the critical mass at which a ball of neutronium would be stable?

(Trying to calculate minimum possible surface gravity of a stable ball)

Is there any generally accepted estimate for the critical mass at which a ball of neutronium would be stable?

(Trying to calculate minimum possible surface gravity of a stable ball)