Volume 49 number 1 — 2021

Download this issue (pdf)

Order a printed copy

Articles in This Issue

• Editorial

• Conference Proceedings of the AAVSO

  Nancy D. Morrison

• Variable Star Research

• Low Resolution Spectroscopy of Miras 2—R Octantis

  Bill Rea, John C. Martin

• The Confirmation of Three Faint Variable Stars and the Observation of Eleven Others in the Vicinity of Kepler-8b by the Lookout Observatory

  Neil Thomas, Margaret Paczkowski

• An Update on the Periods and Period Changes of the Blazhko RR Lyrae Star XZ Cygni

  Dylan Kaneshiro, Horace A. Smith, Gerard Samolyk

• Four New Variable Stars in the Field of KELT-16

  Daniel J. Brossard, Ronald H. Kaitchuck

• A Spectroscopic Study of the Variable Star T Centauri Over a 91-day Cycle, and the Effects of Titanium Oxide on Its Atmosphere

  Julian F. West, Benedict Pace

• RU Cam: The Reluctant Cepheid Revisited

  John R. Percy

• Light Curve Analysis of 185 YSOs: New Periods Discovered for 9 Stars

  Joshua R. Hamilton

• Refining Ephemeris and Estimating Period Change Rate for V965 Cephei

  Maksym Pyatnytskyy

• V350 Muscae: RR Lyrae Star Distance Estimate and RRab Reclassification

  Demetris Nicolaides, Destiny L. King, Sandra Moreno Cristobal

• Period Determination and Classification Analysis of 25 Pulsating Red Giants

  Anshita Saini, Nicholas Walker

• The Correlation between Hα and HeI 6678 Emission Activity in the Be Star γ Cassiopeiae from 1995 to 2021

  Ernst Pollmann

• A Historical Perspective on the Diversity of Explanations for New Classes of Transient and Variable Stars

  Thomas J. Maccarone

• Education and Outreach

• Transits, Spots, and Eclipses: The Sun’s Unique Role in Outreach

  Kristine Larsen

• Variable Star Data

• The Photometric Period of V1391 Cassiopeiae (Nova Cas 2020)

  Richard E. Schmidt

• The Photometric Period of V1112 Persei (Nova Per 2020)

  Richard E. Schmidt

• Recent Maxima of 79 Short Period Pulsating Stars

  Gerard Samolyk

• Times of Minima for Eclipsing Binaries 2017–2020 from Stellar Skies Observatories and 2004–2009 SuperWasp Data Mining

  Edward O. Wiley, E. Whit Ludington

• Recent Minima of 225 Eclipsing Binary Stars

  Gerard Samolyk

• Abstracts

• Types of Period Changes of W Virginis Stars (Abstract)

  Pradip Karmakar, Horace A. Smith, Wayne Osborn

• Search for Variability in 30 Bright Metallic-line A Stars Observed by the TESS Spacecraft (Abstract)

  Joyce A. Guzik

• Simultaneous Photometry on VSX Variables and TESS Exoplanet Candidates (Abstract)

  Madelyn Madsen

• The Quick and the Deadtime (Abstract)

  Gregory Sivakoff

• Characterizing the O’Connell Effect in Kepler Eclipsing Binaries (Abstract)

  Matthew Knote

• Disk Instabilities Caused the 2018 Outburst of AG Draconis (Abstract)

  Helena M. Richie

• Using Bespoke 18-inch Newtonian and R = 3000 Spectrometer for High-Precision Observations (Abstract)

  John Menke

• Morning Star: The Search for and Discovery of the Stars of Bethlehem According to the Gospel of Matthew (Abstract)

  Rev. Kenneth Beckmann

• Automating a Small Urban College Observatory (Abstract)

  Donald Smith, Deshawn Reid

• Researching Eclipsing Binaries “Down Under”: Illustrating the Methods and Results of Variable Stars South (Abstract)

  Thomas J. Richards

• Measuring the Masses of White Dwarfs with X-rays: A NuSTAR Legacy Survey (Abstract)

  Aarran Shaw

• Building Connection through Community-Based Astronomy (Abstract)

  Todd Duncan, Erika Dunning

• New Observations of the SX Phe Star XX Cygni (Abstract)

  Richard Berry, Nolan Sottoway, Sol McClain

• Discoveries of Variable Stars by Amateur Astronomers Using Data Mining on the Example of Eclipsing Binary Romanov V20 (Abstract)

  Filipp Romanov

• Star “Crawling” with Astronomical Binoculars (Abstract)

  William Wink

• GW Lib and V386 Ser: CVs Containing Accreting, Pulsating White Dwarfs (Abstract)

  Paula Szkody

• The Blazar BL Lacertae: 2018-2020 V-, R-, and I-Band CCD Photometry (Abstract)

  Manny Rosales, Christina Singh, Wyatt Carbonell, Leslie F. Brown, Gary Walker

• Differential Photometry of Eclipsing Binary System V798 Her in Globular Cluster NGC 6341 (Abstract)

  Khola Anees, Shaukat Naaman Goderya, Fazeel Mahmood Khan

• Establishing a New ToM (Time of Minimum) for the Primary Eclipse of the Binary System WZ Ophiuchi (Abstract)

  Mike Miller

• Identification of Bimodal Period and Long Secondary Period Carbon Red Giants Misclassified as “Miscellaneous” in VSX (Abstract)

  Kristine Larsen

• Using High Resolution Spectroscopy to Measure Cepheid Pulsation (Abstract)

  Kevin Gurney