\begin{table*}%T1
      \caption{\label{stars}Observed stars and properties.}
 $$
         \begin{array}{p{0.2\linewidth}crrrr}
            \hline
            \hline
            \noalign{\smallskip}
            Star &  {\rm Spectral\ type} & V^a & E_{B-V}^a & {\rm Obs.\ dates} 
	    & \ \ t_{\rm int} \\
	     & & {\rm mag} & {\rm mag} & & \ \ \ \ {\rm min} \\
            \noalign{\smallskip}
            \hline
            \noalign{\smallskip}
\par
	    \bd~1661  & O9V & 8.76 & \ \ 1.11 & {\rm Sep.}\ 99 & \ \ 3 \times 20 \\
		   &  & & & {\rm Sep.}\ 01 & 4 \times 20 \\
	    \bd~1673  & B0 & 10.0 & \ \ 1.62 & {\rm Jan.}\ 02 & \ \ 8 \times  20  \\
	    \bd~1674  & B0 & 9.63 & \ \ 0.73 & {\rm Sep.}\ 99 & \ \ 6  \times 20  \\
		   &  & & & {\rm Sep.}\ 01 & \ \ 6  \times 20  \\
	    \bd~1675  & O7 & 9.08 & \ \ 1.52 & {\rm Sep.}\ 99 & \ \ 4  \times 20  \\
	    	     & & & & {\rm Sep.}\ 01 & 4 \times 20  \\
	    \bd~1669a & B1 & 11.08 & \ \ 0.82 & {\rm Jan.}\ 02 & \ \ 4 \times 20  \\
	    \bd~1669b & B1 & 10.76 & \ \ 1.0 & {\rm Jan.}\ 02 & \ \ 4 \times 20  \\
	    \bdd 1580  & B3 & 10.17 & \ \ 0.75 & {\rm Jan.}\ 02 & \ \ 3 \times 20  \\
	    \bdd 1585  & B5 & 10.33 & \ \ 0.92 & {\rm Jan.}\ 02 & \ \ 8 \times 20  \\
	    \bdd 1598  & B2 &  9.12 & \ \ 1.65 & {\rm Jan.}\ 02 & \ \ 8 \times 20  \\
	    \b 1973$^\dag$  & B2 & 10.55 & \ \ 0.91^b& {\rm Jan.}\ 02 & \ \ 8 \times  20  \\
            \noalign{\smallskip}
            \hline
         \end{array}
	   ~$$
$^{{a}}$ Spectral type and magnitude from
SIMBAD database;~$E_{B-V}$ from McDonnell et~al. (1968). \\ 
$^{b}$ Reddening from Blanco \& Williams (\cite{blanco59}). \\
$^\dag$HIP 118192; not associated with Cep~OB4 as inferred 
from {\it Hipparcos} proper motion and parallax as given by de~Zeeuw et~al. (\cite{zeeuw}).
   \end{table*}