These data are formally published for the years 1900 to 2008. For a description of this data set, please click here.
Note: A separate page exists for the data including unpublished times of maxima. Go here for the current data set including the most recent data (through February of the current year).
Long-term observations of long period variable stars are essential to the determination of period, change in period, change in behavior resulting from mass loss and/or evolution, mode of pulsation (fundamental or overtone), internal structure, and phase at specific times for these stars.
From Sky & Telescope, December 2003. Copyright 2003 by Sky Publishing Corp. Reproduced with permission of the publisher. www.skyandtelescope.com. Star Trails - By David H. Levy