abstracts

ejaavso283

eJAAVSO

Amplitude Variations in Pulsating Yellow Supergiants

   pdf

John R. Percy
Rufina Y. H. Kim

Department of Astronomy and Astrophysics, University of Toronto, Toronto, ON M5S 3H4, Canada

Received June 12, 2014; revised July 24, 2014; accepted July 24, 2014

Abstract

ejaavso282

eJAAVSO

CT Lacertae: Another Long-period Carbon Star with Long-Timescale Variations?

   pdf

Matthew R. Templeton
Peter Maurer
Wolfgang Kriebel
Wayne M. Lowder (1932–2003)
Etienne Morelle
Steve O’Connor
Andrzej Arminski
Laurent Bichon
John E. Bortle

ejaavso281

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

ejaavso274

eJAAVSO

Twenty-Two New Variable Stars in the Northern Sky and Light Elements Improvement for PT Lyr, [WM2007] 1157, and [WM2007] 1160

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Riccardo Furgoni

Keyhole Observatory MPC K48, Via Fossamana 86, S. Giorgio di Mantova (MN), Italy
and
AAMN Gorgo Astronomical Observatory MPC 434, S. Benedetto Po (MN), Italy

ejaavso273

eJAAVSO

Multi-band Differential Photometry of the Eclipsing Variable Star NSVS 5750160

   pdf

Robert C. Berrington
Ball State University, Dept. of Physics and Astronomy, Muncie, IN 47306

Erin M. Tuhey
Ball State University, Dept. of Physics and Astronomy, Muncie, IN 47306; emtuhey@bsu.edu