\magnification = \magstep1

$$
{\rm ^{56}Ni } \quad \Rightarrow \quad {\rm ^{56}Co } \quad \Rightarrow \quad
          {\rm ^{56}Fe }
$$

$$
(m - M) \quad = \quad 5 \log(d) - 5 \qquad \quad \rightarrow  \qquad
            \quad d \quad = \quad 10^{\thinspace (5 + m - M) / 5}
$$


\bye 
