\begin{table}%t2
\caption{Characteristics of radio bright \ion{H}{ii} regions and supernova
   remnants in the vicinity of Wd~1. Column 1 contains a name based on the 
   Galactic coordinates of the object. Columns 2 and 3 contain information 
   about the systemic velocity and derived kinematic distance found in the 
   literature \citep{russ03}. Column 4 contains the distance to the source 
   based on the rotation curve and method described in Sects.~3.1 and 4.1, 
   respectively. Column 5 indicates the proposed spiral arm the object 
   resides in.}
\label{vsys}
%\centering
\small
\begin{tabular}{lcccl}
\hline\hline
Source & $v_{\rm sys}$ & $d_{\rm lit}$ &
 $d_{\rm new}$ & Spiral Arm \\
  & [km~s$^{-1}$] & [kpc] & [kpc] & \\
\hline
G337.8$-$0.1 & & & $\approx$11 & Norma II \\
G337.95$-$0.48 & $-41$ & 3.1 & $\rm 2.9^{+1.2}_{-0.4}$ & Scutum Crux I\\
G338.0$-$0.1 & $-51$ & 12.0 & $\rm 10.7^{+1.4}_{-0.4}$ & Norma II \\
G338.41$-$0.24 & $-1$ & 15.7 & $\rm 14.0^{+4.5}_{-0.9}$ & Scutum-Crux II \\
G338.4$+$0.1 & $-32$ & 13.1 & $\rm 11.7^{+2.0}_{-0.5}$ & Norma II \\
G338.8$+$0.6 & $-62$ & 4.3 & $\rm 3.9^{+0.9}_{-0.4}$ & Scutum-Crux I\\
G338.5+0.1 & & & $\approx$11 & Norma II\\
G338.9$-$0.1 & $-38$ & 3.1 & $\rm 2.8^{+1.2}_{-0.6}$ & Scutum-Crux I\\
G338.9+0.4 & & & $\approx$3.9 & Scutum-Crux I\\
G339.13$-$0.41 & $-38$ & 3.1 & $\rm 2.8^{+1.2}_{-0.6}$ & Scutum-Crux I\\
Wd~1 & $-55$ &  & $\rm 3.6^{+1.0}_{-0.4}$ & Scutum-Crux I\\
G339.58$-$0.12 & $-34$ & 2.8 & $\rm 2.6^{+1.3}_{-0.7}$ & Scutum-Crux I\\
G339.84$+$0.27 & $-20$ & 14.1 & $\rm 12.5^{+2.7}_{-0.6}$ & Norma II \\
G340.2$-$0.2 & $-50$ & 3.7 & $\rm 3.5^{+1.0}_{-0.5}$ & Scutum-Crux I\\
G340.24$-$0.48 & $-61$ & 4.4 & $\rm 3.9^{+0.9}_{-0.3}$ & Scutum-Crux I\\
G340.6+0.3 & & & $\approx$15 & Scutum-Crux II\\
\hline
\end{tabular}
\end{table}