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$$\vbox{
\tabl T{\sevenrm ABLE} 9. \ Photometry of Blue Straggler 21 in NGC~5053  \par
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Night & HJD(Mid) &  $V$ & $\sigma_V$ &  $B$  & $\sigma_B$ \cr
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No.     &"2440000+"&         &         &         &          \cr
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4 & 6587.8030 & 18.837 & 0.01" &        &       \cr
  & """".8072 &        &       & 19.046 & 0.05" \cr
  & """".8287 &        &       & 19.027 & 0.05" \cr
  & """".8544 &        &       & 19.039 & 0.05" \cr
  & """".8606 & 18.897 & 0.01" &        &       \cr
  &           &        &       &        &       \cr
5 & 6588.7630 & 18.906 & 0.01" &        &       \cr
  & """".7696 &        &       & 18.932 & 0.05" \cr
  & """".7873 & 18.932 & 0.01" &        &       \cr
  & """".7939 &        &       & 19.044 & 0.05" \cr
  & """".8189 &        &       & 18.970 & 0.05" \cr
  &           &        &       &        &       \cr
7 & 6915.8133 &        &       & 19.092 & 0.007 \cr
  & """".8244 &        &       & 19.061 & 0.009 \cr
  & """".8362 &        &       & 19.081 & 0.005 \cr
  & """".8424 &        &       & 19.12" & 0.03" \cr
  & """".8529 & 18.92" & 0.04" &        &       \cr
  & """".8581 & 18.861 & 0.008 &        &       \cr
  & """".8664 & 18.863 & 0.005 &        &       \cr
  & """".8865 & 18.852 & 0.006 &        &       \cr
  & """".8949 & 18.857 & 0.005 &        &       \cr
  & """".9025 & 18.859 & 0.005 &        &       \cr
  &           &        &       &        &       \cr
17& 8416.6764 & 18.841 & 0.020 &        &       \cr
  & """".6847 & 18.842 & 0.018 &        &       \cr
  & """".6931 & 18.819 & 0.017 &        &       \cr
  & """".7007 & 18.866 & 0.014 &        &       \cr
  & """".7090 & 18.889 & 0.015 &        &       \cr
  & """".7167 & 18.871 & 0.012 &        &       \cr
  & """".7250 & 18.843 & 0.013 &        &       \cr
  & """".7334 & 18.859 & 0.018 &        &       \cr
  & """".7410 & 18.863 & 0.012 &        &       \cr
  & """".7493 & 18.816 & 0.025 &        &       \cr
  & """".7660 & 18.804 & 0.022 &        &       \cr
  & """".7771 & 18.850 & 0.015 &        &       \cr
  & """".7847 & 18.872 & 0.015 &        &       \cr
  & """".7931 & 18.877 & 0.015 &        &       \cr
  & """".8007 & 18.857 & 0.015 &        &       \cr
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}}$$ \vfill \eject
}$$



\bye
\end