abstracts

ejaavso293

eJAAVSO

Long Term Photometric and Spectroscopic Monitoring of Semiregular Variable Stars

   pdf

Robert R. Cadmus, Jr.

Department of Physics, Grinnell College, Grinnell, IA 50112

Received September 12, 2014; revised December 8, 2014; accepted December 9, 2014

Abstract

ejaavso422451

eJAAVSO

Methods for O–C (Observed Minus Computed) Diagrams and for the Determination of Light Elements of Variable Stars with Linear and Second Order Polynomial Ephemerides

   pdf

Roy Andrew Axelsen
P.O. Box 706, Kenmore, Queensland 4069, Australia

Received July 24, 2014; accepted July 28, 2014

ejaavso422434

eJAAVSO

The Challenge of Observing the zeta Aurigae Binary Stars

   pdf

Frank J. Melillo


Holtsville Observatory, 14 Glen-Hollow Dr, E-16, Holtsville, NY 11742

Received March 31, 2014; revised May 12, 2014 and June 12, 2014; accepted June 12, 2014

Abstract