Volume 48 number 1 — 2020
Articles in This Issue
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Nancy D. Morrison
QZ Carinae—Orbit of the Two Binary Pairs
Mark Blackford, Stan Walker, Edwin Budding, Greg Bolt, Dave Blane, Terry Bohlsen, Anthony Moffat, Herbert Pablo, Andrzej Pigulski, Adam Popowicz, Gregg Wade, Konstanze Zwintz
A Note on Bimodal Pulsating Red Giants
John R. Percy
The Photometric Period of Nova V2891 Cygni
Richard E. Schmidt
The Reclassification of NSV 1586 from a Suspected Cepheid Star to a UG Class System
Stephen M. Brincat, Charles Galdies, Kevin Hills, Winston Grech
Disk Instabilities Caused the 2018 Outburst of AG Draconis
Helena M. Richie, W. M. Wood-Vasey, Lou Coban
Continued Period Changes in BW Vulpeculae
David E. Cowall, Brian A. Skiff, Andrew P. Odell
ASAS-SN Observations of Long Secondary Periods in Pulsating Red Giants
John Percy, Anthony Mark Wallace
HD 121620: A Previously Unreported Variable Star with Unusual Properties
Roy A. Axelsen
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Kevin B. Alton
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John R. Percy
The Photometric Period of V392 Persei (Nova Persei 2018)
Richard E. Schmidt
Light Curve Asymmetries in Three Short Period Eclipsing Binary Stars
Gage Hahs, Charlyn Ortmann, Vayujeet Gokhale
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Ronald G. Samec, Daniel B. Caton, Danny R. Faulkner
A Gallery of Sky Brightness Curves from the January 2019 Total Lunar Eclipse
Jennifer J. Birriel, J. Kevin Adkins, Andrea Bertolo, Rainer Ehlert, Michael McKeag, Salvador J. Ribas, Anthony Tekaatch
Recent Maxima of 77 Short Period Pulsating Stars
Gerard Samolyk
Recent Minima of 216 Eclipsing Binary Stars
Gerard Samolyk
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Joel A. Eaton
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Gordon Myers
Novae Erupting within Symbiotic Binaries: Getting Ready for Coming Fireworks (Abstract)
Ulisse Munari
The Frontiers of RR Lyrae and Cepheid Variable Star Research (Abstract)
Karen Kinemuchi
Applying Transformations (Abstract)
George Silvis
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Gary Billings
AAVSO Bright Star Monitor Update (Abstract)
Ken Menzies, Mike Nicholas
Czech Pulsational and Exoplanetary Group (Abstract)
Marek Skarka
An Introduction to Observing Sections (Abstract)
Bert Pablo
R Aqr—the 2022 Eclipse Has Started! (Abstract)
Lee Anne Willson
The Challenges of Updating VSX in the Survey Era (Abstract)
Sebastián Otero
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Sebastián Otero
Human and Environmental Effects of Light Pollution (Abstract)
Mario Motta
Period Changes and the Evolution of Type II Cepheids (Abstract)
Horace A. Smith, Wayne Osborn, Grzegorz Kopacki, Pradip Karmakar, Barton Pritzl, Nathan De Lee, Charles Kuehn, Aaron LaCluyze, Katie Rabidoux
Modeling Cepheid Variable Stars Using the Open-Source MESA Code (Abstract)
Joyce A. Guzik, Ebraheem Farag, Jakub Ostrowski, Nancy Evans, Hilding Neilson, Sofia Moschou, Jeremy Drake
Variable Stars in the LSST Era (Abstract)
Ardis Herrold
The Denouement of the Galactic Novae (Abstract)
Frederick M. Walter
Period Change Behavior of the Eclipsing Binary LS Persei (Abstract)
Gary Billings
Planning a Visual Observing Program (Abstract)
Michael Cook
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Paul Benni, Artem Burdanov, Eugene Sokov, Khalid Barkaoui, GPX follow-up team, SOPHIE team, Vadim Krushinsky
Update on Professor and Student Survey of NSV RR Lyrae Variable Stars (Abstract)
Melanie Crowson, David Syndergaard
SPP Observing Section (Abstract)
Melanie Crowson
Transform Computations (Abstract)
George Silvis
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Dan J. Deras, A. Arellano Ferro, C. Lazaro, I. H. Bustos Fierro, J. H. Calderon, S. Muneer, Sunetra Giridhar
Variable Stars in Palomar 13: an Evaporating Globular Cluster (Abstract)
Mario Alberto Yepez Rivera, Armando Arellano Ferro, Klaus-Peter Schröder, S. Muneer, Sunetra Giridhar, Christine Allen
AAVSO Contributions to Year 1 of TESS (Abstract)
Dennis Conti
The Exoplanet Transit Survey and the AAVSO (Abstract)
Robert Zellem, Anya Biferno, Ethan Blaser, Alexandra Iterralde, Kyle Pearson, John Engelke
The New Mittelman Observatory—A Professional Quality Robotic Telescope (Abstract)
Arne Henden
Dorrit Hoffleit, Raymond Berg, and the “Unnamed Fleming Variables”: An Epilogue (Abstract)
Kristine Larsen
Long-time Observations of Visual Solar Observers (Abstract)
Rodney H. Howe
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Isobel Snellenberger, Madelyn Madsen, Matt Craig
PYTHON for Variable Star Astronomy: A Status Report (Abstract)
Matt Craig, Isobel Snellenberger, Madelyn Madsen
Student Involvement in Exoplanet Science (Abstract)
Pat Boyce
Examples of Variable Stars found in the GNAT/MOTESS Variable Star Catalog (Abstract)
Roy A. Tucker, Eric R. Craine, Adam L. Kraus
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Alexander K. Beltzer-Sweeney, Elizabeth Butler, Adam Kowalski, Gianna Cauzzi
High-precision Radial Velocity Measurements of Classical Cepheids (Abstract)
Richard I. Anderson