Volume 47 number 2 — 2019

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Articles in This Issue

Editorial

• So Long, and Thanks for All the Manuscripts

  John R. Percy

• Life, Variable Stars, and Everything

  Nancy D. Morrison

Variable Star Research

• Photometric Analysis of V633 Virginis

  Surjit S. Wadhwa

• High Occurrence Optical Spikes and Quasi-Periodic Pulses (QPPs) on X-ray Star 47 Cassiopeiae

  Gary Vander Haagen

• BVRcIc Photometric Observations and Analyses of the Totally Eclipsing, Solar Type Binary, OR Leonis

  Ronald G. Samec, Daniel B. Caton, Danny R. Faulkner

• VRcIc Photometric Study of the Totally Eclipsing Pre-W UMa Binary, V616 Camelopardalis: Is it Detached?

  Ronald G. Samec, Daniel B. Caton, Davis R. Gentry, Danny R. Faulkner

• The Long-term Period Changes and Evolution of V1, a W Virginis Star in the Globular Cluster M12

  Pradip Karmakar, Horace A. Smith, Nathan De Lee

• A New Candidate δ Scuti Star in Centaurus: HD 121191

  Roy A. Axelsen

• Observations and Analysis of a Detached Eclipsing Binary, V385 Camelopardalis

  Ronald G. Samec, Daniel B. Caton, Danny R. Faulkner

• Multi-filter Photometric Analysis of W Ursae Majoris (W UMa) Type Eclipsing Binary Stars KID 11405559 and V342 Boo

  Tatsuya Akiba, Andrew Neugarten, Charlyn Ortmann, Vayujeet Gokhale

• Observations and Preliminary Modeling of the Light Curves of Eclipsing Binary Systems NSVS 7322420 and NSVS 5726288

  Mathew F. Knote, Ronald H. Kaitchuck, Robert C. Berrington

• Period Analysis of All-Sky Automated Survey for Supernovae (ASAS-SN) Data on Pulsating Red Giants

  John R. Percy, Lucas Fenaux

• A Photometric Study of Five Low Mass Contact Binaries

  Edward J. Michaels

• Medium-term Variation in Times of Minimum of Algol-type Binaries: XZ And, RZ Cas, U Cep, TW Dra, U Sge

  Geoff B. Chaplin

• CCD Photometry, Period Analysis, and Evolutionary Status of the Pulsating Variable V544 Andromedae

  Kevin B. Alton

Education and Outreach

• Sky Brightness Measurements and Ways to Mitigate Light Pollution in Kirksville, Missouri

  Vayujeet Gokhale, Jordan Goins, Ashley Herdmann, Eric Hilker, Emily Wren, David Caples, James Tompkins

Instruments, Methods, and Techniques

• Automated Data Reduction at a Small College Observatory

  Donald A. Smith, Hollis B. Akins

Variable Star Data

• The Contribution of A. W. Roberts’ Observations to the AAVSO International Database

  Tim Cooper

• Recent Minima of 200 Eclipsing Binary Stars

  Gerard Samolyk

• Recent Minima of 267 Recently Discovered Eclipsing Variable Stars

  Gerard Samolyk, Vance Petriew

Abstracts

• A Robotic Observatory System that Anyone Can Use for Education, Astro-Imaging, Research, or Fun! (Abstract)

  David Lane

• DASCH Project Update (Abstract)

  Edward Los

• The Eye is Mightier than the Algorithm: Lessons Learned from the Erroneous Classification of ASAS Variables as “Miscellaneous” (Abstract)

  Kristine Larsen

• Contributions of the AAVSO to Year 1 of TESS (Abstract)

  Dennis Conti, Stella Kafka

• The Project PHaEDRA Collection: An Anchor to Connect Modern Science with Historical Data (Abstract)

  Peggy Wargelin

• The Eclipsing Triple Star System b Persei (HD 26961) (Abstract)

  Donald F. Collins

• Photometric Accuracy of CMOS and CCD Cameras (Preliminary Results) (Abstract)

  Kenneth T. Menzies

• Measuring and Correcting Non-linearities in ABG Cameras (Abstract)

  Richard Wagner

• A Simple Objective Prism Spectrograph for Educational Purposes (Abstract)

  John Thompson

• Studies of Pulsating Red Giants using AAVSO and ASAS-SN Data (Abstract)

  John R. Percy, Lucas Fenaux

• Variable Stars in the College Classroom (Abstract)

  Kristine Larsen

• A Study of RR Lyrae Variable Stars in a Professor-Student Collaboration using the American Public University System (APUS) Observatory (Abstract)

  David Syndergaard, Melanie Crowson

• The Rotating Frame (Abstract)

  Christa Van Laerhoven

• Five Years of CCD photometry (Abstract)

  Damien Lemay

• How-to Hour—Planning an Observing Program (Abstract)

  Kenneth J. Menzies, Michael J. Cook, Franz-Josef (Josch) Hambsch

• The Zooniverse (Abstract)

  L. Clifton Johnson

• The BRITE Constellation Mission (Abstract)

  Gregg Wade

• The Importance of Religion and Art in Sowing the Seeds of Success of the U.S. Space Program in the 1940s and 1950s (Abstract)

  Catherine L. Newell

• Public Outreach Through the Cronyn Observatory (Abstract)

  Jan Cami

• Canada’s Role in the James Webb Space Telescope (Abstract)

  Nathalie Ouellette

• Helen Sawyer Hogg: One Woman’s Journey with the Stars (Abstract)

  Maria J. Cahill

• Some Memories of the David Dunlap Observatory (Abstract)

  Donald C. Morton

• Canada’s Role in the Maunakea Spectroscopic Explorer (Abstract)

  Alan McConnachie

• Shadow Chasers 2017 (Abstract)

  David Shuman, Paul Simard

• Toronto’s Astronomical Heritage (Abstract)

  John R. Percy

• On the Construction of the Heav’ns: A Multi-media, Interdisciplinary Concert and Outreach Event (Abstract)

  James E. Hesser, David Lee, W. John McDonald

• Who doth not see the measures of the Moon/ Which thirteen times she danceth every year?/ And ends her pavan thirteen times as soon (Abstract)

  David H. Levy, R. A. Rosenfeld

• Dorner Telescope Museum (Abstract)

  Rudolph Dorner, Randall Rosenfeld

• Science of the Stars: The National Heritage of the Dominion Observatory (Abstract)

  Sharon Odell

• RASC Robotic Telescope Project (Abstract)

  Paul Mortfield

• The Past, Present and Future of Youth Outreach at the RASC (Abstract)

  Jenna Hinds

• Bringing Astronomy Alive—Student Engagement at John Abbott College (Abstract)

  Karim Jaffer

• A Story of Spectroscopy: How Stellar Composition is Made Clear through Deceptively Simple Tools (Abstract)

  Julien da Silva

• Things You May Not Know about the Apollo 11 Mission (Abstract)

  Randy Attwood

• Teaching Neil to Land—Simulators Used in the Apollo Program (Abstract)

  Ron MacNaughton

• First Man—The Life of Neil Armstrong (Abstract)

  James R. Hansen

• Flare Stars: A Short Review (Abstract)

  Krstinja Dzombeta, John R. Percy

Errata

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

  Ahmed Essam, Mohamed Abdel-Sabour, Gamal Bakr Ali