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AAVSO Bulletin

AAVSO Bulletin 75 for 2012 - Introduction

AAVSO Bulletin 75: Predicted Dates of Maxima and Minima of
381 Long Period Variables for 2012

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

AAVSO Bulletin 75 - Stars with Double Maxima

In AAVSO Bulletin 75 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 2012 through February 2013 are presented here in list form (JD and Gregorian calendar dates) and in approximation of the main Bulletin table format.

AAVSO Bulletin 74 for 2011- Introduction

Introduction to Bulletin 74

AAVSO Bulletin 74: Predicted Dates of Maxima and Minima of
371 Long Period Variables for 2011

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

AAVSO Bulletin 74 for 2011- Letter to Observers

Letter to Users of 2011 Bulletin

                                                                                                                                     February 2011

Dear Observers,

AAVSO BULLETIN 74 -Stars with Double Maxima

In Bulletin 74 there are three stars that exhibit double maxima: V Boo, 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 2011 through February 2012 are presented here in list form (JD and Gregorian calendar dates) and in approximation of the main Bulletin table format.

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AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484