Two-colour photoelectric investigation of AR Lacertae

Details Two-colour photoelectric investigation of AR Lacertae Two-colour photoelectric investigation of AR Lacertae

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ap%26ss..77..325k&link_type=abstract

Astrophysics and Space Science, vol. 77, no. 2, July 1981, p. 325-346. Research supported by the Scientific and Technical Resea

Astronomy and Astrophysics

Astronomy

19

Eclipsing Binary Stars, Light Curve, Stellar Spectrophotometry, Ultraviolet Astronomy, Color, Electrophotometers, K Lines, Periodic Variations, Stellar Envelopes

Scientific paper

The eclipsing binary AR Lac was observed on 70 nights in 1978 and 1979
with a 48 cm Cassegrain reflector using standard B and V filters.
Several times of minima have been obtained and the new light elements
have been calculated. The orbital period of the system is found to
decrease by 14.6 s/century.

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