maxmin

These data consist of formally published data for the years 1900 to 2008, and data for the years 2009 through the present for a subset of these stars.  Data from 2009 to the present were those used for calculations of the AAVSO Bulletin through 2018, and are considered preliminary.  For a description of this data set, please click here.

Bulletin 73 for 2010

Predicted Dates of Maxima and Minima of Long Period Variables for 2010

These data are formally published for the years 1900 to 2008.  For a description of this data set, please click here.

Elizabeth O. Waagen, Janet A. Mattei, and Matthew R. Templeton

Click here for data access

Introduction

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.