Whole Earth Telescope Observations of the White Dwarf Star (PG1159-035) (Data Set E)

INTRODUCTION In March 1989 an international collaboration called the Whole Earth Telescope (WET) obtained a unique series of measurements of the brightness changes of the pre-white dwarf star PG1159-035. Astronomical measurements at visual wavelengths are ordinarily interrupted by the inconvenient intrusion of daylight at the observing site. By using a cooperative network of observers at telescopes well dispersed in longitude, we were able to minimize these interruptions. We acquired a nearly continuous data set which spans 231 hours, sampled at 10-second intervals. We submitted these data as a candidate for the Santa Fe Time Series Prediction and Analysis Competition where it was labelled “Data Set E.”