next previous
Up: Proper motions of Luyten 24h


1 Introduction

This work is an appendix to the sixth part (Wroblewski & Costa 1999, hereafter W&C) of a program to identify high proper motion stars in the southern hemisphere being carried out with the flat-field 70/100/210 cm Maksutov Astrograph (field: $5\hbox{$^\circ$ }
\times 5\hbox{$^\circ$ }$, scale: 99.4 $\hbox{$^{\prime\prime}$ }$/mm) at the Estación Astronómica de Cerro el Roble operated by the University of Chile. Here we present newly calculated proper motions, coordinates relative to the Hipparcos Catalogue (ESA 1997) and finding charts, for 166 LTT stars re-discovered as a result of the search for high proper motion stars carried out by W&C in nineteen 5$^\circ$ $\times$ 5$^\circ$ areas, located between $-5^\circ$ and $-30^\circ$ in declination and between 13h 30m and 24h in right ascension.


  \begin{figure}\begin{tabular}{c}
\includegraphics[angle=90,width=8.8cm]{ds1789f1...
...
\includegraphics[angle=90,width=8.8cm]{ds1789f1_b.eps}\end{tabular}\end{figure} Figure 1: a-b) Differences in the sense LTT-W&C between our proper motions and those of Luyten, plotted as a function of the coordinates

The coordinates of the 19 area centers and the time base in years between the first and second epoch observations are given in Table 1 of W&C. Figure 1 of W&C shows the distribution of the searched areas in the sky.

We would like to point out that the present data for re-discovered LTT stars have been given in the form of an appendix to W&C solely for consistency with previous publications from this program (see e.g. Wroblewski & Torres 1998). In what follows of our survey, both the newly discovered fast moving stars and the re-discovered LTT stars in additional areas being explored (Wroblewski & Costa 2000, in preparation) will be published in a single paper.


next previous
Up: Proper motions of Luyten 24h

Copyright The European Southern Observatory (ESO)