\begin{table}%t5
\caption{\label{table:5}Period04 analysis results of HD~50747.}
%\centering
\small
\begin{tabular}{rrrrr} 
\hline\hline 
& \multicolumn{2}{c}{ Frequency}  & Amplitude & Comment\\
&$\mu$Hz&d$^{-1}$&$\mu$mag&\\  
\hline  
F1&56.309&4.865&465.326&\\
F2&11.070&0.956&419.315&\\
F3&4.787&0.414&218.525&\\
F4&25.381&2.193&225.250&\\
F5&11.804&1.020&200.361&\\
F6&67.383&5.822&157.676&$\rm F1+F2$\\
F7&8.262&0.714&137.349&\\
F8&40.985&3.541&155.490&\\
F9&12.997&1.123&115.464&\\
F10&39.320&3.397&117.916&\\
F11&5.710&0.493&111.093&\\
F12&17.909&1.547&105.581&\\
F13&28.056&2.424&86.470&\\
F14&14.019&1.211&98.215&\\
F15&33.271&2.875&95.513&\\
F17&28.271&2.443&84.361&\\
F18&15.628&1.350&57.912&\\
F19&35.905&3.102&60.125&\\
F20&31.232&2.698&66.914&\\
F21&5.230&0.452&77.300&\\
F22&23.246&2.008&60.237&artefact?\\
F23&36.602&3.162&57.721&\\
F24&37.385&3.230&56.063&\\
F25&10.740&0.928&61.108&\\
F26&45.144&3.900&54.500&$\rm F1-F2$\\
F27&13.658&1.180&62.307&\\
F28&4.309&0.372&59.474&\\
F29&31.437&2.716&49.910&\\
F30&32.759&2.830&56.642&\\
F31&15.786&1.364&49.791&\\
F32&68.125&5.886&48.071&\\
F33&33.575&2.901&48.838\\
F34&4.913&0.424&60.885\\
F35&15.314&1.323&48.604\\
F36&30.782&2.660&47.912\\
F37&13.216&1.142&45.118\\
F38&40.863&3.531&70.136\\
F39&7.422&0.641&40.011\\
F40&32.265&2.788&41.449\\
F41&68.548&5.923&39.074\\
\hline  
\end{tabular}
\end{table}