\begin{table}%T4
\par
\caption{\label{tab4}Mercury: $\langle T_{\rm B}\rangle $ and $\Delta T_{\rm B}$ as a function 
of frequency/wavelength, for cosine approximations irrespective of Mercury's
surface regions.}
 \small%\centerline
{
\begin{tabular}{cccccc} 
\hline
\hline
 Frequency  & Wavelength & $\langle T_{\rm B}\rangle$ & $\Delta T_{\rm B}$ &
$\Omega$ & Ref. \\
 $\nu$ (GHz) & $\lambda$ [mm]   & [K]  & [K]  & [$\degr$] &  \\
\hline
   8  & 37.5 & 380~$\pm$~4  & 55~$\pm$~3 & 32~$\pm$~4 &      1 \\
 10.7 & 28   & 374~$\pm$~4  & 42~$\pm$~5 &  36~$\pm$~7 &     2  \\ 
90.0 & 3.3  & 359~$\pm$~4 & 147~$\pm$~6 &   17~$\pm$~2 & 2 \\ 
90   & 3.5--2.6 & 317~$\pm$3 & 137~$\pm$~4 & 17.6 & 3 \\
 142.8 & 2.1  & 350~$\pm$~20 & 150~$\pm$~15 & 20   & 4, in 2 \\
 150   & 1.9--2.1 & 295~$\pm$~19 & 176~$\pm$~23 &  17.5 & 3 \\
 230   & 1.2--1.4 & 278~$\pm$~10 & 154~$\pm$~15 &  8.2 & 3 \\
\hline\end{tabular}}
\smallskip
Ref. 1: Klein (\cite{Klein1970}), Eq.~(1); 2: Epstein $\&$ Andrew (\cite{Epstein1985});
3: this paper; 4:   Davis (in 2). 
\end{table}