\begin{table}%t4
\caption{Coravel and literature radial velocities for red giants in \object{NGC~2420}.
\label{vr2420}}
\hspace*{5mm}%\centerline
 {\begin{tabular}{rllrrrrrlrrrlrrl}
\hline\hline\noalign{\smallskip}
 No & \multicolumn{1}{c}{$V$} & $B-V$ & \multicolumn{1}{c}{$V_{\rm r}$} & \multicolumn{1}{c}{$\epsilon$} & $E/I$ &  $N$ & $P(\chi^2)$ & 
  \multicolumn{1}{c}{$RV_{\rm lit}$} & \multicolumn{1}{c}{$\sigma$} & $n$ & Diff & Src & SFJ  & CCR  & Remarks \\
\noalign{\smallskip}\hline\noalign{\smallskip}
\noalign{{\bf \it Members} \smallskip}
 34 & 13.087 & 1.006 & +74.16 & 1.84 &  4.68 &  2 & 0.000 & +72.30 & 0.50 &  1 & 1.80 & mcc & +67. &      & SB \\
 41 & 12.671 & 1.077 & +73.66 & 0.33 &  0.41 &  2 & 0.686 &        &      &    &      &     & +76. &      & \\ 
 62 &(14.40  & 0.86  &        &      &       &    &       &        &      &    &      &     & +62. &      & \\
 66 & 14.560 & 0.885 &        &      &       &    &       & +70.79 & 0.50 &  1 &      & mcc & +67. & +68. & \\
 68 &(14.03  & 0.64  &        &      &       &    &       &        &      &    &      &     & +60. & +75. & \\
 73 & 11.086 & 1.433 & +73.94 & 0.23 &  0.50 &  2 & 0.619 &        &      &    &      &     &      &      & \\ 
 76 & 12.656 & 0.990 & +74.13 & 0.34 &  1.03 &  2 & 0.312 & +69.78 & 0.26 &  2 & 4.35 & lj  & +75. &      & SB? \\
 91 & 12.650 & 1.021 & +73.85 & 0.37 &  0.83 &  2 & 0.424 &        &      &    &      &     & +65. &      & \\ 
111 & 12.629 & 0.898 & +73.44 & 0.36 &  0.93 &  2 & 0.359 & +75.64 & 0.50 &  1 &--2.20 & mcc & +68. &      & SB? \\
111 &        &       &        &      &       &    &       & +69.62 & 0.36 &  2 & 3.82 & lj  &      &      & \\
114 & 13.103 & 1.004 & +73.23 & 0.53 &       &  1 &       &        &      &    &      &     & +62. &      & \\ 
115 & 11.561 & 1.123 & +73.94 & 0.51 &  2.06 &  2 & 0.039 & +73.44 & 0.17 &  4 & 0.50 & mcc &      &      & \\
115 &        &       &        &      &       &    &       & +70.50 & 0.28 &  3 & 3.44 & lj  &      &      & \\
115 &        &       &        &      &       &    &       & +73.3  &      &  3 & 0.64 & ss  &      &      & \\
118 & 12.613 & 0.996 & +73.53 & 0.35 &  0.92 &  2 & 0.367 &        &      &    &      &     & +60. &      & \\
119 & 12.541 & 0.983 & +74.08 & 0.35 &  0.10 &  2 & 0.921 & +73.21 & 1.13 &  2 & 0.87 & mcc & +64. &      & \\
119 &        &       &        &      &       &    &       & +71.97 & 0.59 &  2 & 2.11 & lj  &      &      & \\ 
126 & 13.695 & 0.922 & +66.64 & 0.63 &       &  1 &       &        &      &    &      &     &      & +77. & SB? \\ 
131 &(13.16  & 0.97  & +72.81 & 0.69 &       &  1 &       &        &      &    &      &     & +63. &      & \\  
136 &(13.38  & 0.89  & +73.55 & 0.57 &  2.32 &  3 & 0.005 &        &      &    &      &     &      &      & SB? \\  
140 & 11.529 & 1.273 & +72.89 & 0.39 &  1.68 &  2 & 0.093 & +72.88 & 0.27 &  5 & 0.01 & mcc & +63. &      & \\
140 &        &       &        &      &       &    &       & +70.46 & 0.68 &  3 & 2.43 & lj  &      &      & \\
140 &        &       &        &      &       &    &       & +72.5  &      &  1 & 0.39 & ss  &      &      & \\
169 &(12.34  & 0.97  & +74.12 & 0.31 &  0.22 &  2 & 0.823 &        &      &    &      &     & +76. &      & \\ 
173 & 11.768 & 0.908 & +74.09 & 1.81 &  9.05 &  4 & 0.000 & +72.37 & 0.75 & 15 & 1.72 & mcc & +73. &      & SB \\
173 &        &       &        &      &       &    &       & +70.78 & 0.49 &  3 & 3.31 & lj  &      &      & \\
173 &        &       &        &      &       &    &       & +68.8  &      &  2 & 5.29 & ss  &      &      & \\
174 & 12.397 & 1.011 & +73.18 & 0.31 &  0.95 &  2 & 0.341 & +67.57 & 0.43 &  2 & 5.61 & lj  & +69. &      & SB? \\
176 & 13.537 & 0.965 & +71.56 & 0.67 &       &  1 &       &        &      &    &      &     &      & +57. & \\ 
188 & 13.478 & 0.943 & +70.95 & 0.64 &       &  1 &       &        &      &    &      &     &      & +65. & \\ 
192 & 12.937 & 1.033 & +72.83 & 0.69 &  2.10 &  2 & 0.042 &        &      &    &      &     &      &      & \\ 
236 & 12.587 & 0.983 & +73.24 & 0.50 &  1.46 &  2 & 0.149 &        &      &    &      &     & +74. &      & \\ 
250 & 11.37  & 1.37  & +75.60 & 2.00 & 10.46 &  4 & 0.000 & +77.68 & 1.10 & 18 &--2.08 & mcc &      &      & SB \\
250 &        &       &        &      &       &    &       & +67.70 & 0.89 &  3 & 7.90 & lj  &      &      & \\
250 &        &       &        &      &       &    &       & +78.6  &      &  2 &--3.0  & ss  &      &      & \\[0.50 mm]
\noalign{{\bf \it Non members} \smallskip}
  6 & 13.09  & 1.01  & --12.85 & 0.55 &       &  1 &       &        &      &    &      &     &      &      & NM \\  
 77 & 14.38  & 0.93  &        &      &       &    &       &        &      &    &      &     & +24. &      & NM \\
102 & 13.42  & 1.17  & +59.99 & 0.74 &       &  1 &       &        &      &    &      &     &      &      & NM \\ 
181 & 13.96  & 1.01  &        &      &       &    &       &        &      &    &      &     & +45. &      & NM \\
189 & 11.19  & 0.86  & --27.48 & 0.41 &  1.54 &  2 & 0.123 & --30.61 & 0.39 &  2 & 3.13 & lj  &      &      & NM \\
212 & 13.251 & 0.970 & +33.04 & 0.65 &       &  1 &       &        &      &    &      &     &      & +41. & NM \\ 
221 & 11.89  & 1.06  & --23.81 & 0.71 &  2.66 &  2 & 0.008 &        &      &    &      &     &      &      & NM \\ 
255 & 11.93  & 1.14  & --32.07 & 0.42 &       &  1 &       &        &      &    &      &     &      &      & NM \\  
262 & 12.90  & 0.90  &  --0.54 & 0.82 &       &  1 &       &        &      &    &      &     &      &      & NM \\ 
270 & 13.56  & 1.00  & +55.09 & 0.65 &       &  1 &       &        &      &    &      &     & +61. &      & NM \\
279 & 12.96  & 1.02  & --22.90 & 0.63 &       &  1 &       &        &      &    &      &     &      &      & NM \\
\hline
\end{tabular}}
\par
\smallskip
The columns give Cannon \& Lloyd's (\cite{cl70}) identification, $V$ and $B-V$ ($V$ values with a leading 
parenthesis are photographic), the mean radial velocity ($V_{\rm r}$) and the error on the mean ($\epsilon$) in km~s$^{-1}$, 
the number of observations, $N$, the probability $P(\chi^2)$ of variability from Coravel. Columns~(9) to (15)~reproduce 
literature data, RVs ($RV_{\rm lit}$) and errors~($\sigma$) in km~s$^{-1}$, 
the number of observations~($n$), the difference with Coravel results (Diff), the sources (Src) 
(mcc: McClure \& Woodsworth~\cite{mccw}; lj: Liu \& Janes~\cite{lj87}; ss: Smith \& Suntzeff~\cite{ss87}), 
RVs from Scott et~al. (\cite{sfj95}), (SFJ) and Cameron \& Reid (\cite{cr87}), (CCR). The last column provides
notes on binarity (SB: spectroscopic binary) and membership (NM: non-member).
\end{table}