JAAVSO Volume 47 Number 1, 2019 is published

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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 47, Number 1, 2019

Articles in this issue:

• Editorial

  • Citizen Science

    John R. Percy

• Variable Star Research

  • Observations of the Suspected Variable Star Ross 114 (NSV 13523)

    Sriram Gollapudy, Wayne Osborn

  • CCD Photometry, Light Curve Modeling, and Period Study of the Overcontact Binary Systems V647 Virginis and V948 Monocerotis

    Kevin B. Alton

  • SSA Analysis and Significance Tests for Periodicity in S, RS, SU, AD, BU, KK, and PR Persei

    Geoff B. Chaplin

  • The Southern Solar-type, Totally Eclipsing Binary PY Aquarii

    Ronald G. Samec, Heather A. Chamberlain, Walter Van Hamme

  • Photometric Analysis of Two Contact Binary Systems: USNO-A2.0 1200-16843637 and V1094 Cassiopeiae

    Surjit S. Wadhwa

  • A Photometric Study of the Contact Binary V384 Serpentis

    Edward J. Michaels, Chlöe M. Lanning, Skyler N. Self

  • CCD Photometry, Light Curve Deconvolution, Period Analysis, Kinematics, and Evolutionary Status of the HADS Variable V460 Andromedae

    Kevin B. Alton, Kazimierz Stẹpień

  • KAO-EGYPT J064512.06+341749.2 is a Low Amplitude and Multi-Periodic δ Scuti Variable Star

    Ahmed Essam, Mouhamed Abdel-Sabour, Gamal Bakr Ali

  • Low Resolution Spectroscopy of Miras—X Octantis

    Bill Rea

  • Long-Term Changes in the Variability of Pulsating Red Giants (and One RCB Star)

    John R. Percy, Arthur Lei Qiu

  • Multi-color Photometry of the Hot R Coronae Borealis Star and Proto-planetary Nebula V348 Sagittarii

    Arlo U. Landolt , James L. Clem

• Instruments, Methods, and Techniques

  • Sky Brightness at Zenith During the January 2019 Total Lunar Eclipse

    Jennifer J. Birriel, J. Kevin Adkins

• Variable Star Data

  • Visual Times of Maxima for Short Period Pulsating Stars V

    Gerard Samolyk

  • Recent Maxima of 85 Short Period Pulsating Stars

    Gerard Samolyk

  • Recent Minima of 242 Eclipsing Binary Stars

    Gerard Samolyk

  • Radial Velocities for Four δ Sct Variable Stars

    Elizabeth J. Jeffery, Thomas G. Barnes III, Ian Skillen, Thomas J. Montemayor

  • Discovery and Period Analysis of Seven Variable Stars

    Tom Polakis

• History and Biography

  • The History of AAVSO Charts, Part III: The Henden Era

    Tim R. Crawford

• Abstracts

  • Discoveries for δ Scuti Variable Stars in the NASA Kepler 2 Mission (Abstract)

    Joyce A. Guzik, Jorge Garcia, Jason Jackiewicz

  • Stepping Stones to TFOP: Experience of the Saint Mary’s College Geissberger Observatory (Abstract)

    Ariana Hofelmann, Brian Hill

  • Small Observatory Operations: 2018 Highlights from the West Mountain Observatory (Abstract)

    Michael Joner

  • Comparison of North-South Hemisphere Data from AAVSO Visual Observers and the SDO Satellite Computer-Generated Wolf Numbers (Abstract)

    Rodney Howe

  • Apsidal Motion Analysis of the Eccentric Eclipsing Binary V1103 Cassiopeiae (Abstract)

    Gary Billings

  • Variable Stars and Cultural Astronomy (Abstract)

    Kristine Larsen

  • Cold War Spy in the Sky now Provides an Eye on the Cosmos (Abstract)

    Ken Steiner

  • APASS DR10 Has Arrived! (Abstract)

    Arne A. Henden

  • The Faint Cataclysmic Variable Star V677 Andromedae (Abstract)

    Lewis M. Cook, Enrique de Miguel, Geoffrey Stone, Gary E. Walker

  • The Fun of Processing a Stellar Spectrum—the Hard Way (Abstract)

    Stanley A. Gorodenski

  • Is sCMOS Really sCMAS? (Abstract)

    Gary Walker

  • β Cepheid and Mira Variable Stars: A Spectral Analysis (Abstract)

    Jesse D’Shawn Harris, Lucian Undreiu

  • New Intense Multiband Photometric Observations of the Hot Carbon Star V348 Sagittarii (Abstract)

    Franz-Josef Hambsch, Christopher S. Jeffery

  • Camera Characterization and First Observation after Upgrade of Feder Observatory (Abstract)

    Isobel Snellenberger, Adam Kline

  • Bright Star Monitor Network (Abstract)

    Michael Nicholas

  • Solar System Objects and the AAVSO Photometric All-Sky Survey (APASS) (Abstract)

    Stephen Levine, Arne Henden, Dirk Terrell, Doug Welch, Brian Kloppenborg

  • Conducting the Einstein Gravitational Deflection Experiment (Abstract)

    Richard L. Berry

• Errata

  • Erratum: Recent Minima of 266 Eclipsing Binary Stars

    Gerard Samolyk