JAAVSO Volume 51 Number 2, 2023 is published

http://www.aavso.org/apps/jaavso/volumes/

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 51, Number 2, 2023

Articles in This Issue

• Editorial

  • Editorial: Who are JAAVSO’s Authors?

    Nancy D. Morrison

• Variable Star Research

  • Tracking Spectroscopically Determined H-alpha and H-beta Indices for Two Emission-Line Objects

    Tyler B. Harding, Eric G. Hintz

  • Photometry and Transit Modeling of Exoplanet XO-1b

    Simon Sikora, Timothy Banks

  • Investigation of the Variable Star CH Camelopardalis in the Planetary Nebula NGC 1501

    Trent Mosher, Aisha Randhawa, Carolina Noviello, Adela Horsting, Kalée Tock

  • No Longer Eclipsing—The Strange Case of RS Crateris

    Stephen P. Cook

  • Markov Chain Monte Carlo Optimization applied to Dyson’s Visual Double Stars

    Isabella Soh Xiao Si, Michael D. Rhodes, Edwin Budding, Timothy Banks

  • Ninety-Seven New Variable Stars in ω Centauri

    Douglas Walker, Michael Albrow

  • CCD Photometry, Light Curve Deconvolution, Period Analysis, and Evolutionary Status of the HADS Variable V1116 Herculis

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

  • Spectroscopic and Photometric Study of the Asymptotic Giant Branch Star T Cephei

    David Boyd

  • X-ray Luminosity Versus Orbital Period of AM CVn Systems

    Teja Begari, Thomas J. Maccarone

  • Variability Properties of Red Giants and Supergiants in the AAVSO Binocular Observing Program

    John R. Percy, Sandra Zhitkova

  • The “Long Secondary Period (LSP) Variables”: Overview and Some Analysis

    John R. Percy, Mayank H. Shenoy

• Instruments, Methods, and Techniques

  • An Orbital Solution for WASP-12 b: Updated Ephemeris and Evidence for Decay Leveraging Citizen Science Data

    Avinash S. Nediyedath, Martin J. Fowler, Anthony Norris, Shivaraj R. Maidur, Kyle A. Pearson, Scott Dixon, Pablo Lewin, Andre O. Kovacs, Alessandro Odasso, Ken Davis, Michael Primm, Prithwis Das, Bryan E. Martin, Douglas Lalla

• Variable Star Data

  • Recent Minima of 229 Eclipsing Binary Stars

    Gerard Samolyk