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% Table 5, reference stars
\begin{deluxetable}{llll}
\tablenum{5}
\tablecaption{Reference stars}
\tablehead{
\colhead{star} & \colhead{V-band} &  \colhead{R-band}  & \colhead{I-band}\\ 
\colhead{}     & \colhead{5480A}  & \colhead{7000A}    & \colhead{9000A}
}
\startdata
1 & $12.39$ & $12.00$ & $11.66$\\
2 & $18.34$ & $17.92$ & $17.46$\\
3 & $17.92$ & $16.87$ & $15.72$\\
\enddata
\tablecomments{Optical magnitudes of 3 reference stars in the field of 
PKS~2255$-$282, derived at the CTIO 0.9m telescope on
1998 August 09. Observational uncertainties are $\sim0.03$mag.}
\end{deluxetable}

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