\begin{table}%tC.21
\par
\caption{Like Table~\ref{naphthalene} for benzo[g,h,i]perylene (C$_{22}$H$_{12}$).}
\label{benzoperylene}
%\begin{center}
\par
\begin{tabular}{cccc}
\hline \hline \noalign{\smallskip} 
& \multicolumn{3}{c}{Integrated flux} \\
\noalign{\smallskip} \cline{2-4} \noalign{\smallskip}
 &  & Red & IRAS\\
Peak & ISRF & Rectangle & 21282+5050\\
($\mu$m) & (W$~~$sr$^{-1}$) (\%) & (W$~~$sr$^{-1}$) (\%)& (W$~~$sr$^{-1}$) (\%)\\ 
\hline \noalign{\smallskip}
$\perp$ 15.41 & $1.1\times 10^{-28}$ (1.49) & $5.8\times 10^{-27}$ (1.94) & $6.0\times 10^{-24}$ (1.19) \\
$\parallel$ 17.68 & $3.0\times 10^{-29}$ (0.41) & $1.6\times 10^{-27}$ (0.55) & $1.6\times 10^{-24}$ (0.31) \\
$\perp$ 18.40 & $7.2\times 10^{-29}$ (0.98) & $3.9\times 10^{-27}$ (1.31) & $3.9\times 10^{-24}$ (0.77) \\
$\parallel$ 18.62 & $5.2\times 10^{-30}$ (0.07) & $2.4\times 10^{-28}$ (0.08) & $2.3\times 10^{-25}$ (0.05) \\
$\perp$ 19.44 & $4.7\times 10^{-29}$ (0.64) & $2.6\times 10^{-27}$ (0.87) & $2.6\times 10^{-24}$ (0.51) \\
$\parallel$ 20.82 & $4.4\times 10^{-30}$ (0.06) & $2.6\times 10^{-28}$ (0.09) & $1.7\times 10^{-25}$ (0.03) \\
$\parallel$ 22.16 & $1.9\times 10^{-29}$ (0.26) & $1.1\times 10^{-27}$ (0.35) & $9.3\times 10^{-25}$ (0.18) \\
$\perp$ 23.56 & $3.1\times 10^{-30}$ (0.04) & $2.2\times 10^{-28}$ (0.07) & $3.8\times 10^{-26}$ (0.01) \\
$\parallel$ 24.43 & $1.6\times 10^{-29}$ (0.21) & $8.1\times 10^{-28}$ (0.27) & $7.3\times 10^{-25}$ (0.14) \\
$\parallel$ 26.12 & $4.7\times 10^{-30}$ (0.06) & $2.9\times 10^{-28}$ (0.10) & $9.4\times 10^{-26}$ (0.02) \\
$\parallel$ 27.65 & $5.3\times 10^{-30}$ (0.07) & $3.1\times 10^{-28}$ (0.10) & $7.9\times 10^{-26}$ (0.02) \\
$\perp$ 34.15 & $6.3\times 10^{-30}$ (0.08) & $4\times 10^{-28}$ (0.13) & -- \\
$[34.37]$ & $6.2\times 10^{-30}$ (0.08) & $2.0\times 10^{-28}$ (0.07) & -- \\
$\parallel$ 35.04 & $8.2\times 10^{-30}$ (0.11) & $4.6\times 10^{-28}$ (0.15) & $1.4\times 10^{-25}$ (0.03) \\
$[36.35]$ & $7.4\times 10^{-30}$ (0.10) & $2.2\times 10^{-28}$ (0.07) & -- \\
$\perp$ 49.73 & $1.6\times 10^{-29}$ (0.22) & $9.6\times 10^{-28}$ (0.32) & $5.2\times 10^{-25}$ (0.10) \\
$[55.73]$ & $1.1\times 10^{-29}$ (0.15) & $2.3\times 10^{-28}$ (0.08) & -- \\
$\perp$ 76.15 & $1.9\times 10^{-29}$ (0.26) & $1.1\times 10^{-27}$ (0.38) & $5.0\times 10^{-25}$ (0.10) \\
$\perp$ 105.47 & $1.6\times 10^{-29}$ (0.22) & $1.0\times 10^{-27}$ (0.34) & $3.4\times 10^{-26}$ (0.01) \\
$[167.79]$ & $1.4\times 10^{-29}$ (0.19) & $5.2\times 10^{-29}$ (0.02) & --  \\
\hline 
\end{tabular}
%\end{center}
\par
\end{table}