semiregular

AAVSO Bulletin 79: Predicted Dates of Maxima and Minima of
381 Long Period Variables for 2016

Elizabeth O. Waagen, Senior Technical Assistant
AAVSO, 49 Bay State Road, Cambridge, MA 02138 USA

Letter to Users of 2016 Bulletin

                                                                                                                                                        February 2016

Dear Observers,

Letter to Users of 2015 Bulletin

                                                                                                                                                        February 2015

Dear Observers,

AAVSO Bulletin 78 - Predicted Dates of Maxima and Minima of Long Period Variables for 2015 - is published in the new format that was introduced in 2011. The information that was included in earlier numbers of the Bulletin is included in this new format, along with more information. The Bulletin does not include stars that do not have an AAVSO mean curve.

AAVSO Bulletin 78: Predicted Dates of Maxima and Minima of
380 Long Period Variables for 2015

Elizabeth O. Waagen, Senior Technical Assistant
Matthew R. Templeton, Ph.D, Science Director
AAVSO, 49 Bay State Road, Cambridge, MA 02138 USA

In AAVSO Bulletin 78 there are two stars that exhibit double maxima:  R Cen and R Nor. These stars therefore have primary and secondary maxima and minima. They are not included in the main Bulletin table. Their predicted dates of maximum and minimum for January 2015 through February 2016 are presented here in list form (JD and Gregorian calendar dates) and in approximation of the main Bulletin table format.

The pulsating red supergiant Antares (“anti-Mars”), at V = 1.06, is the 15th-brightest star in the night sky, but it gets less attention than its near-twin Betelgeuse. Check the length of their entries in wikipedia, for instance.

AAVSO Bulletin 77 - Predicted Dates of Maxima and Minima of Long Period Variables for 2014 - is published in the new format that was introduced in 2011. The information that was included in earlier numbers of the Bulletin is included in this new format, along with more information. The Bulletin does not include stars that do not have an AAVSO mean curve.