Volume 20 number 2 — 1991

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Articles in This Issue

Editorial

• Introduction to the First AAVSO CCD Workshop

  Janet A. Mattei

Instruments, Methods, and Techniques

• Photometry with Charge-Coupled Devices: Characteristics and Applications

  George H. East

• Introduction to Time-Series Photometry Using Charge-Coupled Devices

  Steve B. Howell

• Using the Lynxx CCD Camera on a Small Telescope for Variable Star Observing

  Gary P. Emerson, Stephen J. Little

• The Sky Over Crystal Lake

  George S. Mumford

• Computer Animations and the Shapes of Cepheid Velocity Curves

  Charles A. Whitney

• Night Sky Brightness from Visual Observations II. A Visual Photometer

  Arthur R. Upgren

• Adapting a 10-Inch Astrograph for Sheet Film

  David B. Williams

Education and Outreach

• CCDs in an Educational Environment

  Priscilla J. Benson

Abstracts

• Building a Homemade CCD Camera (Abstract)

  Paul Boltwood

• NSV 7814: A Probable Eclipsing Binary (Abstract)

  Robert DeMartino, Christopher Predom

• Visual Observation of Binaries With Eclipses of Long Duration (Abstract)

  Marvin E. Baldwin

• Your Very Own Solar System (Abstract)

  John Pazmino

• Analysis of AAVSO Visual Observations of Small-Amplitude Red Variables: An Autocorrelation Approach (Abstract)

  John R. Percy, Li V. Sen

• CY Aquarii--The Continuing Story (Abstract)

  Ronald E. Zissell

• The 3.5-Hour Photometric Period in V603 Aquilae (Abstract)

  Gino Thomas

Variable Star Research

• How Amateur Astronomers are Helping Discover the True Nature of Cataclysmic Variables

  Steve B. Howell

• Searching for the White Dwarf in Dwarf Novae

  Albert V. Holm, Howard Lanning, Janet A. Mattei, Edmund Nelan

• Period Hunting in Long-Term Light Curves of Cataclysmic Variables

  Hayley R. Richman

• V3890 Sagittarii Brightness Update

  La Tanya P. Miller

• Periodicities of Maser Emission from Variable Stars

  Sara A. Maene

• A Correlation Between Water Maser Emission and the Visual Light Curve of RX Bootis

  Jennifer Hedden, Priscilla J. Benson, Irene R. Little-Marenin, Robert R. Cadmus

• Water Maser Emission and the Visual Light Curve of R Draconis

  Samantha J. Osmer, Priscilla J. Benson, Irene R. Little-Marenin

• DH Dra: An Interesting Red Variable

  Dietmar Boehme

• V343 Cygni: A W Virginis Star with a Constant Period

  Laura M. Woodney, Amy R. Lesser

• A Recent Study of V783 Cygni

  Julie Cross

• A V801 Cygni Update

  Robert C. Berrington

• The Period of V943 Aquilae I. Discovery of a Shorter Period

  Elizabeth A. Fraser

• The Period of V943 Aquilae II. Demonstrations That the Shorter Period is Spurious

  Bernard V. Fallon

• The Period of EF Comae Berenices

  Amy R. Lesser

• A Revision of the Elements for EL Comae Berenices

  Laura M. Woodney

• The 1991 Eclipse of OW Geminorum

  David B. Williams, Daniel H. Kaiser

• Photoelectric Photometry of OW Geminorum at Phase 0.5

  David B. Williams, Donald P. Pray, James E. Wood

• The Revised Period of V3821 Sagittarii

  Anna Seto

• MQ Serpentis, A Mystery

  Dorrit Hoffleit

Solar

• Definitive American Relative Sunspot Numbers for 1991

  Peter O. Taylor

Book Reviews

• Book Review--The Astronomer's Sourcebook

  Paul L. Sventek

Organizational/Administrative

• Minutes of the 80th Annual Meeting (Cambridge, MA)

  Clinton B. Ford

• Annual Report of the Director for Fiscal Year 1990-1991

  Janet A. Mattei

• Annual 1990-1991 Committee Reports

  Various

• Chart Distribution Report

  AAVSO Headquarters

• Classical Cepheid Committee Report

  Thomas A. Cragg

• New Chart Committee Report

  Charles E. Scovil

• Eclipsing Binary Committee Report

  Marvin E. Baldwin

• Nova Search Committee Report

  Kenneth C. Beckmann

• Photoelectric Photometry Committee Report

  Howard J. Landis

• RR Lyrae Committee Report

  Marvin E. Baldwin

• Solar Division Committee Report

  Peter O. Taylor

• Supernova Search Committee Report

  Robert O. Evans

• Telescope Committee Report

  Charles E. Scovil

• Treasurer's Report, October 1, 1990-September 30, 1991

  Theodore H. N. Wales