\begin{table}%tA.3
  \caption{Measured periods and variability amplitudes in Run~III. The second column lists the determined periods with estimated error interval, the last column gives the amplitude of the unfiltered brightness variation in magnitudes. All results are consistent with Run~I and~II measurements.}  \label{tab:run3}
%\centering
\par
  \begin{tabular}{lccccc}
\hline\hline
\multirow{2}{\Ld}{Object~name}          & 
Time cov.& Airmass & \#& 
\multicolumn{1}{c}{Period}  & Amplitude\\
&[days]&range&Pts.&\multicolumn{1}{c}{[days]}&\\\hline
RX J0406.8+2541           &116&1.2--2.9&1748&1.70 $\pm$ 0.02       &0.25\\
RX J0408.2+1956           &122&1.2--3.3&1866&3.0109 $\pm$ 0.0002   &0.53\\
RX J0409.3+1716           &36 &1.2--2.9& 524&0.6 $\pm$ 0.1         &0.10\\
GSC2.2~N3022313162        &36 &1.2--2.9& 513&0.59075 $\pm$ 0.00020 &0.56\\
RX J0447.9+2755           &36 &1.1--2.4& 533&1.27 $\pm$ 0.02       &0.10\\
RX J0452.8+1621           &60 &1.3--2.7& 514&3.6 $\pm$ 0.1         &0.16\\
RX J0455.8+1742           &124&1.2--3.5&1078&8.1 $\pm$ 0.5         &0.10\\
\hline
  \end{tabular}
\end{table}