  The astrophysical $S$-factor for the reaction $^7$Be(p,$\gamma$)$^8$B up to
an energy of 2~MeV (c.m.) and the capture cross section of
$^7$Li(n,$\gamma$)$^8$Li up to 1~MeV (c.m.) are calculated using the Direct
Capture model (DC). Both calculations are in good agreement with experimental
data.
