Old and new observations of V523 Saggitarii

Details Old and new observations of V523 Saggitarii Old and new observations of V523 Saggitarii

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....97..842w&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 97, March 1989, p. 842-847. Research supported by NASA, NSF, and Sigma Xi.

Astronomy and Astrophysics

Astronomy

5

Eclipsing Binary Stars, F Stars, Light Curve, Main Sequence Stars, Radial Velocity, Stellar Luminosity, Stellar Rotation, Stellar Temperature, Ubv Spectra

Scientific paper

The history of V523 Sgr is reviewed. New photoelectric timings of minimum light are used to improve the period of apsidal rotation and the orbital eccentricity. UBV photometry indicates that the mean spectral type is F0, and not A5. Blue and yellow light curves described here are the first photelectric ones ever obtained. Within satisfactory limits, the light curves have been solved for consistent stellar parameters with the code EBOP. With significant qualifications, a mean value of the stellar structural constant is given.

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