Period Changes in the Eclipsing Binaries DG Lacertae and MZ Lacertae

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

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990javso..19...12s&link_type=abstract

The Journal of the American Association of Variable Star Observers. vol. 19, no. 1, p. 12-16

Physics

4

Dg Lacertae, Mz Lacertae, Dg Lacertae, Mz Lacertae

Scientific paper

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.

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