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AAVSO Bulletin 78 - Stars with Double Maxima

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.

AAVSO Bulletin 77 for 2014 - Letter to Observers

Letter to Users of 2014 Bulletin

                                                                                                                                                        February 2014

Dear Observers,

AAVSO Bulletin 77 for 2014 - Introduction

AAVSO Bulletin 77: Predicted Dates of Maxima and Minima of
381 Long Period Variables for 2014

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

AAVSO Bulletin 77 - Stars with Double Maxima

In AAVSO Bulletin 77 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 2014 through February 2015 are presented here in list form (JD and Gregorian calendar dates) and in approximation of the main Bulletin table format.

Alert Notice 190: 1753-25 Var Sgr - New variable in Sgr AND FN Sgr - chart correction [V4683 Sgr]

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
BITNET:  aavso@cfa     SPAN:  cfa::aavso
INTERNET:  aavso@cfa.harvard.edu
Tel. 617-354-0484       FAX 617-354-0665

AAVSO ALERT NOTICE 190 (August 12, 1994)

1753-25 VAR SGR - NEW VARIABLE IN SAGITTARIUS [V4683 SGR]

Alert Notice 269: 0735-40 CGCS 1825 - new red variable in Puppis [V671 Pup]

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
INTERNET:  aavso@aavso.org
Tel. 617-354-0484       Fax 617-354-0665

AAVSO ALERT NOTICE 269 (January 14, 2000)

0735-40 CGCS 1825 - NEW RED VARIABLE IN PUPPIS

Alert Notice 358: Monitoring of Mira (omi Cet) in support of HST Observations

September 17, 2007: Dr. Margarita Karovska (Harvard-Smithsonian Center for Astrophysics) and
collaborators are performing a comprehensive study of the Mira AB interacting system, using the WFPC2 camera on the Hubble Space Telescope. Mira AB is composed of the prototype Mira variable omi Cet and its companion VZ Cet, separated by about 0.5 arcsecond. As part of this project they plan to obtain a large number of high-angular resolution images at wavelengths ranging from UV to optical.  The main objectives of the HST/WFPC2 observations are:

Bulletin 76 for 2013 published and available online

AAVSO Bulletin 76 - Predicted Dates of Maxima and Minima of Long Period Variables for 2013 - has been published and is available from the AAVSO Bulletin page.

AAVSO Bulletin 76 gives predicted dates for 381 Mira and semiregular variables for the period January 2013 through February 2014. These dates are based on observations in the AAVSO International Database.

Pages

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