\begin{table}%t5
\caption{\label{tab:phot}$BV$ Johnson photometry of HD~171488.} 
\small%\centering
\par
\begin{tabular}{l l l l l} 
\hline\hline  
\noalign{\smallskip}
 HJD          &   $V$	 &  err    &  $B-V$   &   err   \\
 2~400~000+ &  (mag)   &   (mag)  &  (mag)  &  (mag)  \\
\noalign{\medskip}
\hline	     			      
 53~962.40200  &  7.429 &  0.006 & 0.614 &  0.004  \\
 53~962.40332  &  7.430 &  0.005 & 0.610 &  0.004  \\
 53~962.44950  &  7.442 &  0.004 & 0.605 &  0.009  \\
 53~962.45024  &  7.430 &  0.006 & 0.615 &  0.008  \\
 53~962.51545  &  7.415 &  0.009 & 0.621 &  0.012  \\
 53~962.51668  &  7.445 &  0.008 & 0.604 &  0.015  \\
 53~963.32720  &  7.435 &  0.005 & 0.606 &  0.010  \\
 53~963.32861  &  7.434 &  0.009 & 0.610 &  0.006  \\
 53~963.36905  &  7.416 &  0.005 & 0.613 &  0.008  \\
 53~963.37295  &  7.431 &  0.009 & 0.605 &  0.011  \\
 53~963.40868  &  7.421 &  0.006 & 0.613 &  0.006  \\
 53~963.40989  &  7.424 &  0.004 & 0.608 &  0.005  \\
 53~963.45009  &  7.435 &  0.008 & 0.607 &  0.014  \\
 53~963.45113  &  7.439 &  0.006 & 0.602 &  0.008  \\
 53~963.49762  &  7.434 &  0.009 & 0.614 &  0.018  \\
 53~963.49901  &  7.435 &  0.012 & 0.600 &  0.019  \\
 53~964.31067  &  7.452 &  0.006 & 0.621 &  0.008  \\
 53~964.31246  &  7.445 &  0.004 & 0.606 &  0.002  \\
 53~964.36066  &  7.436 &  0.006 & 0.611 &  0.009  \\
 53~964.36211  &  7.428 &  0.006 & 0.615 &  0.005  \\
 53~964.42000  &  7.417 &  0.007 & 0.611 &  0.003  \\
 53~964.42103  &  7.438 &  0.004 & 0.609 &  0.008  \\
 53~964.46390  &  7.430 &  0.010 & 0.605 &  0.006  \\
 53~964.46498  &  7.449 &  0.004 & 0.612 &  0.008  \\
 53~964.50762  &  7.416 &  0.013 & 0.615 &  0.019  \\
 53~964.50945  &  7.417 &  0.007 & 0.617 &  0.010  \\
 53~965.30566  &  7.444 &  0.005 & 0.611 &  0.009  \\
 53~965.30695  &  7.456 &  0.008 & 0.615 &  0.009  \\
 53~965.33133  &  7.446 &  0.004 & 0.613 &  0.004  \\
 53~965.33242  &  7.455 &  0.007 & 0.607 &  0.004  \\
 53~965.38597  &  7.454 &  0.005 & 0.604 &  0.006  \\
 53~965.38770  &  7.454 &  0.002 & 0.608 &  0.005  \\
 53~965.45028  &  7.464 &  0.008 & 0.607 &  0.010  \\
 53~965.45120  &  7.453 &  0.005 & 0.619 &  0.003  \\
 53~965.49642  &  7.455 &  0.004 & 0.613 &  0.009  \\
 53~965.49818  &  7.445 &  0.002 & 0.633 &  0.012  \\
 53~966.35221  &  7.446 &  0.008 & 0.605 &  0.006  \\
 53~966.35356  &  7.432 &  0.004 & 0.605 &  0.006  \\
 53~966.41324  &  7.423 &  0.005 & 0.608 &  0.016  \\
 53~966.41460  &  7.428 &  0.005 & 0.612 &  0.008  \\
 53~966.46407  &  7.404 &  0.008 & 0.611 &  0.009  \\
 53~966.46501  &  7.406 &  0.004 & 0.600 &  0.004  \\
 53~967.29996  &  7.383 &  0.016 & 0.605 &  0.016  \\
 53~967.30349  &  7.399 &  0.004 & 0.602 &  0.004  \\
 53~967.37942  &  7.406 &  0.004 & 0.602 &  0.008  \\
 53~967.38090  &  7.405 &  0.006 & 0.607 &  0.005  \\
 53~967.44171  &  7.389 &  0.008 & 0.609 &  0.008  \\
 53~967.44372  &  7.397 &  0.004 & 0.613 &  0.004  \\
 53~967.51569  &  7.428 &  0.014 & 0.624 &  0.011  \\
 53~968.31638  &  7.453 &  0.010 & 0.615 &  0.009  \\
 53~968.31768  &  7.441 &  0.007 & 0.625 &  0.010  \\
 53~968.38402  &  7.429 &  0.005 & 0.619 &  0.005  \\
 53~968.38599  &  7.438 &  0.005 & 0.622 &  0.007  \\
 53~968.43591  &  7.425 &  0.011 & 0.615 &  0.012  \\
 53~968.43727  &  7.426 &  0.007 & 0.614 &  0.014  \\
 53~969.30101  &  7.443 &  0.010 & 0.603 &  0.015  \\
 53~969.30235  &  7.448 &  0.010 & 0.611 &  0.015  \\
 53~969.37936  &  7.460 &  0.010 & 0.610 &  0.007  \\
 53~969.38200  &  7.460 &  0.008 & 0.616 &  0.006  \\
 53~969.46843  &  7.451 &  0.010 & 0.617 &  0.008  \\
 53~969.46947  &  7.475 &  0.003 & 0.615 &  0.005  \\
 53~969.52846  &  7.475 &  0.010 & 0.634 &  0.013  \\
 53~969.52938  &  7.465 &  0.015 & 0.621 &  0.015  \\
\hline 
\end{tabular}
\end{table}