EOS BM165 in the vicinity of the high-density NH-N phase transition, where 2 is the crossing of the the N and NH pressures, 3 represents the density and pressure of the NH phase at the phase coexistence, and 3′ is the density and pressure of the N phase at the phase coexistence. Horizontal segment 33′ is the pressure at the first order phase transition. Were the NH phase to be (sufficiently) stable until reaching a maximum mass, maximum (central) density in stable stars would correspond to the asterisk sign, ρ_c,max = ρ _∗ . For the fully equilibrated hadronic matter ρ_c,max is slightly higher than . For a more detailed discussion of this point, see the text.