Skip to main content

Web Publications


AAVSO: Electronic Journal of the AAVSO (eJAAVSO) AAVSO HOME > publications > ejaavso

 
 
eJAAVSO

A Period Study of the Eclipsing Binary GK Cephei

 

Pdf

 

Raymond D. Benge, Jr.

James A. Roberts

University of North Texas

Denton, Texas 76203-5368

 

Presented at the Spring Meeting of the AAVSO, May 21, 1994

 

Abstract

 

Several new determinations of times of minima based upon photoelectric measurements of the eclipsing binary GK Cephei are reported. These measurements, together with times of minima previously reported in the literature, permit an improvement to the ephemeris equation for GK Cep. Analysis of O-C residuals determined from linear ephemeris equations suggests a periodic oscillation with a period of 18.6 years. Inclusion of a sinusoidal term in the ephemeris equation with this period greatly improves the fit of the ephemeris equation with reported observations of times of minima.

 

Article on ADS

 

 
 
  search engine |  site map |  links |  contact us
 

Keywords:
AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484