JAAVSO Volume 54, Number 1, 2026 is published

The printed version of this issue will be available soon. Please watch for the announcement on our main web page.

The Journal of the American Association of Variable Star Observers
Volume 54, Number 1, 2026

Articles in This Issue

Editorial

• Data Exploration

  Nancy D. Morrison

  Variable Star Research

• Analysis of 33 Binary Systems Initially Discovered with the ROTSE-I Telescope

  Nicole R. Crumpler, Daniel Gum, Farley Ferrante, Robert Kehoe, Grant P. Donnelly, Courtney Fagg, Terrance Alina, Samantha Fowler, Derek Hornung, Christine Miterko, Kidus Nagasse, Muaz Wahid, Grace Wolfe, Eric Guzman, Jason Barton, Keri Christian, Troy Nemeth, Kelly Pearson, Boris Y. Tsang, Dominik Fritz, Dylan Siegrist, Isaac Joseph, Sean MacIntyre, Govinda Dhungana, Isaac Guerra, Carl Akerlof, Alexandra Frymire, Stuart Marshall, Matthew McGreal, Tim McKay, Emily Moise, Acacea Sherman, James Wren

• Photometric Distance to the RR Lyrae Star W Canum Venaticorum using Period-Luminosity-Metallicity Relationships

  Alli Porter, Kavin Siaw, Jefry Godoy Espinal, Marshall Dalton, Brynn Anderson, Stephen R. McNeil

• Digital Photometry, Period Analysis, Light Curve Deconvolution, and Evolutionary Status of the High Amplitude δ Scuti Variable Star KO Piscium

  W. Allen Gilchrist, Jr., Kevin B. Alton

• Observational Constraints on Periods and Magnitudes of Cepheid and Suspected Variables in Gemini

  Hailey F. Whiteman, Scott T. Miller

• How a Precessional Oscillation Ceases: Observational Evidence for the Dissolution of the Circumstellar Disk of Pleione

  Ernst Pollmann

• Ephemeris Refinement for Qatar-4 b, HAT-P-18 b, and CoRoT-1 b with Small Telescope and TESS Observations

  Heather B. Hewitt, Mikaela Chamlee, Trinity Hockman, Annalise Igyarto, Dan van der Burg, Federico R. Noguer, Ira Bell, Jeremie Abides, Simon Abshear, Philip Arthur Ellis, Shashank Avinash Araokar, Eurico Bras, Jamie Buckingham, Dion Bumpus, Kartavya Chauhan, Logan Conrad, Koty Creel, Courtney Dammann, Samantha Duarte Rodriguez, Jeffrey Ensor, Benjamen Erickson, Adam Facciponti, Logan Farrar, Blaise Foca, Holly Foreman, Mark Foreman, Haley Fournier, Jeff Franklin, Keith Goss, Dustin Hubbartt, Nicolette Jeantilus, Justin Kobrin, Spencer Lunsford, Wyatt McCormick, Zachary McNeely, Kurtis Merrill, Sarah Miller, Dean Miller, Sofie Miura, Cody Montgomery, Karina Munoz, Keith Norton, Anna Plum, Jake Raby, Jay Thompson, Sohley Wallace-Pichardo, Molly N. Simon, Robert T. Zellem

• A Photometric Study of the Near-Contact Binary CE Pegasi

  Edward J. Michaels

  Solar

• Measuring Zenith Sky Brightness and Color Changes during the April 8, 2024 Total Solar Eclipse Using Filtered Sky Quality Meters

  Jennifer Birriel, Brayden Schwegman, Ivan Hargesheimer

  Instruments, Methods, and Techniques

• Characterizing Photonic Ring Resonator Filters for OH Suppressed Near-infrared Astronomy

  Amy Hermann, James Lasker, R. Vaisakh, Robert Kehoe, Ryan Staten, Alex Wallace, Simon Ellis, Kyler Kuehn, Steve Kuhlmann

• Photometric Capabilities and Scientific Applications of the Meshtitsa Private Observatory

  Nikola Antonov

• Empirical Transformation Formulae from APASS DR9 to the Johnson–Kron–Cousins B V Rc Ic Photometric System

  Nico Montigiani

  Variable Star Data

• Spectrophotometry of a Flare on EQ Pegasi A

  Robert K. Buchheim

• Recent Maxima of 91 Short Period Pulsating Stars

  Gerard Samolyk

• Recent Minima of 243 Eclipsing Binary Stars

  Gerard Samolyk

• Recent Minima of 141 Eclipsing Binary Stars

  Stephen P. Cook