JAAVSO Volume 48 Number 2, 2020 is published

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The Journal of the American Association of Variable Star Observers
Volume 48, Number 2, 2020

Articles in This Issue

• Editorial
  • Editorial in Two Parts

    Nancy D. Morrison

• Variable Star Research
  • Light Curve Analysis of 33 Pulsating Red Giant Stars

    Kate M. Blackham

  • Spectroscopic Monitoring of the 2017–2019 Eclipse of VV Cephei

    Ernst Pollmann, Philip Bennett

  • TYC 9291-1051-1: The First Precision Photometry and Analyses of the Active, Totally Eclipsing, Solar-type Binary

    Ronald G. Samec , Heather Chamberlain, Walter Van Hamme

  • The V Photometric Light Curve of Supernova 2012aw from the Archive Data of Porziano Amateur Observatory

    Corrado Spogli, Paolo Fagotti, Dario Vergari, Gianni Rocchi, Stefano Ciprini

  • Photometry and Spectroscopy of P Cygni: Periodic Variation of the Intrinsic Hα-line Flux

    Ernst Pollmann

  • Optical Photometry of the Dwarf Nova QZ Serpentis in Outburst

    Frank A. Kahle

  • Systematic Effects in the Visual Estimation of the Brightness of Red Variable Stars

    Robert R. Cadmus, Jr.

  • BVRcIc CCD Observations and Analyses of the 0.9-day Period, Totally Eclipsing, Solar Type Binary, NS Camelopardalis

    Ronald G. Samec , Heather Chamberlain, Daniel Caton, Davis Gentry, Riley Waddell, Danny Faulkner

  • SZ Sculptoris: Light Curve Analyses and Period Study of the Totally Eclipsing, Galactic South Pole, Solar-Type Binary

    Ronald G. Samec, Walter Van Hamme, Robert Hill

  • V725 Sagittarii: Unique, Important, Neglected

    John R. Percy

  • Analysis of ASAS-SN Observations of Short-Period Mira Stars

    John R. Percy, Patricia Golaszewska

  • CCD Minima for Selected Eclipsing Binaries in 2019

    Robert H. Nelson

  • Photometry of TIC 230386284, a Recently Found Bright Eclipsing Star in Draco

    Maksym Pyatnytskyy

  • CCD Photometry, Light Curve Modeling, and Period Study of Four Overcontact Binary Systems: EI CMi, NSVS 3092802, V1309 Her, and V958 Mon

    Kevin B. Alton

  • A Photometric Study of the Contact Binary GR Piscium

    Edward J. Michaels

  • Maintaining the Ephemeris of 20 CoRoT Planets: Transit Minimum Times and Potential Transit Timing Variations

    Hans J. Deeg, Peter Klagyivik, James D. Armstrong, David Nespral, Lev Tal-Or, Roi Alonso, Richelle Cabatic, Cameron Chaffey, Bartek Gauza, Sergio Hoyer, Christopher J. Lindsay, Paulo Miles-Páez, Patricio Rojo, Brandon Tingley

  • The Discovery of a New EA-Type Variable, TIC 160164029

    Gabriel C. Neagu, Diana M. Manole

  • Kepler Observations of Three SRS: Stars—V616 Lyrae, V607 Lyrae, and V621 Lyrae

    Jennifer Cash, Don Walter, Wesley Red, Gabrielle Jones

  • The W-type W UMa Contact Binary MU Cancri

    Andrew P. Odell, Joel A. Eaton

  • U, B, V, Rc, Ic Photometric Observations of the Dwarf Nova DX Andromedae During the Years 2018–2019

    Corrado Spogli, Gianni Rocchi , Dario Vergari, Stefano Ciprini

  • Expansion and Reinterpretation of the O–C Diagram of the High Amplitude δ Scuti Star RS Gruis

    Roy A. Axelsen, Tim Napier-Munn

• Education and Outreach
  • Exoplanets for Everyone

    Todd Duncan, Erika Dunning, Justin Hurworth, Erin Mercer

• Variable Star Data
  • Southern Eclipsing Binary Minima and Light Elements in 2019

    Tom Richards, Mark Blackford, Neil Butterworth, Robert Jenkins

  • Recent Minima of 244 Eclipsing Binary Stars

    Gerard Samolyk

• Abstracts
  • Gaia Data Enables New Methods of Analysis and Discovery (Abstract)

    John E. Hoot

  • Beyond the Milky Way: Comparison Stars for Photometry in M31 and M33 (Abstract)

    John C. Martin

  • Towards the Flux Calibration of Small Telescope Spectra (Abstract)

    Wayne Green, Anthony Rodda, Clarke Yeager

  • The Role of 3D Printing in Spectrograph and Small Telescope Science (Abstract)

    Anthony Rodda, Jerry Foote, Wayne Green, Thomas Smith, Clarke Yeager, Forrest Sims, Robert Buchheim, Paul Gerlach

  • Applying a Comprehensive, High-precision Catalog to Asteroid Light Curves (Abstract)

    Eric Dose

  • Vetting The MOTESS-GNAT 1 Catalog (Abstract)

    John E. Hoot

  • An Array Photo-Polarimeter for Blazar Measurements (Abstract)

    Gary M. Cole, Andrew Friedman

  • More Glass for Optical SETI (Abstract)

    Bruce Howard

  • Observation and Investigation of NGC 1662 (Abstract)

    Talia Green, Sebastian Dehnadi, Connor Espenshade, Kalée Tock

  • Measurements of Neglected Double Stars (Abstract)

    Brandon Bonifacio, Calla Marchetti, Ryan Caputo, Kalée Tock

  • Tycho Tracker: A New Tool to Facilitate the Discovery and Recovery of Asteroids Using Synthetic Tracking and Modern GPU Hardware (Abstract)

    Daniel Parrott

  • Astronomy Will Not Trail Off: Novel Methods for Removing Satellite Trails From Celestial Images (Abstract)

    Owen M. Dugan

  • Exoplanet Watch: Utilizing Small Telescopes Operated by Citizen Scientists for Transiting Exoplanet Follow-up (Abstract)

    Robert T. Zellem

  • Data Analysis of Bright Main-Sequence A- and B-type Stars Observed Using the TESS and BRITE Spacecraft (Abstract)

    Joyce A. Guzik, Jason Jackiewicz, Andrzej Pigulski, Giovanni Catanzaro, Michael S. Soukup, Patrick Gaulme, Gerald Handler, The BRITE Team

  • Comparing the Ages of NGC 1513 and NGC 2420 (Abstract)

    Sahana Datar, Cindy Wang, Connor Espenshade, Kalée Tock

  • The Prairie View Observatory: First Light (Abstract)

    Brian Cudnik, Mahmudur Rahman, Gary M. Erickson, Premkumar Saganti, S. Douglas Holland

  • Confirmation of Short Period Pulsating Variables Using an Array of Robotic Telescopes (Abstract)

    Eric G. Hintz, Jarrod L. Hansen, Jacob S. Jensen, Elizabeth E. Banks

  • Analysis of HAT-P-23 b, Qatar-1 b, WASP-2 b, and WASP-33 b with an Optimized EXOplanet Transit Interpretation Code (Abstract)

    Sujay Nair, Jonathan Varghese, Kalée Tock, Robert Zellem

  • Assessing Habitability of Exoplanet Targets (Abstract)

    Elias Koubaa, Lian E, Greta Olson, Ivan Altunin, Kalée Tock

  • Studies of Exoplanets with Candidate TOI 717.01 and Confirmed HAT-P-3b (Abstract)

    Sujay Nair, Krithi Koodli, Elliott Chalcraft, Kalée Tock

  • Looking for Transit Timing Variations in TrES-1 (Abstract)

    Quinn Perian, Paige Yeung, Peyton Robertson, Kalée Tock

  • Observation of Gaia (DR2) Red and White Dwarf Binary Stars in the Solar Neighborhood (Abstract)

    Rick Wasson

  • New Life for the Bright Star Monitors (Abstract)

    Arne A. Henden

  • Identification and Analysis of Pulsating Red Giants Misclassified by ASAS and ASAS-SN (Abstract)

    Kristine Larsen

  • The Photometric and Spectroscopic Development of the 2019 Eruption of the Recurrent Nova V3890 Sgr Followed with Small Telescopes (Abstract)

    Forrest Sims

  • Photometry of Betelgeuse Through Its Recent Faint Minimum (Abstract)

    Tom Polakis