Skip to main content

Web Publications


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

 
 
eJAAVSO

T Period Changes in the Eclipsing Binaries DG Lacertae and MZ Lacertae

pdf    ps

 

Jindřich Šilhán

Nicholas Copernicus Observatory and Planetarium, Kraví hora, CS-616 00 Brno 16, Czechoslovakia

 

Presented at the First European Meeting of the AAVSO Brussels, July 24-28, 1990

 

Abstract

 

DG Lac and MZ Lac have been observed visually and studied on plates of the Sonneberg Sky Survey. The orbits of both systems proved to be eccentric. MX Lac displays apsidal motion and DG Lac shows a reflection effect. The orbital period of DG Lac increased abruptly in the early

1960's.

 

Link to ADS abstract, article and citation information

 
 
  search engine |  site map |  links |  contact us
 

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