  I summarize a comprehensive account of the energies, splittings and
electromagnetic decays of the low-lying states of the bottom charmed meson
system. Richardson's potential is used to include running coupling constant
effects in the central potential, and the full radiative one-loop expressions
derived by Pantaleone, Tye and Ng are used for the spin-dependent potentials.
Our result for the ground state energy is 6286 +15 -6 MeV. The ground state
lifetime is found to be 0.36 + 0.05 - 0.05 ps. Both of these numbers are
consistent with the measured values recently announced by the CDF collaboration
at Fermilab.
