Photometry of the classical Cepheid SU Cygni

Details Photometry of the classical Cepheid SU Cygni Photometry of the classical Cepheid SU Cygni

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pasp...91...67f&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 91, Feb.-Mar. 1979, p. 67-70.

Astronomy and Astrophysics

Astronomy

13

Astronomical Photometry, Binary Stars, Cepheid Variables, Companion Stars, Light Curve, Radial Velocity, Stellar Magnitude, Stellar Mass, Stellar Spectra

Scientific paper

UBVRI photometry of SU Cyg is presented, originally with a view to searching for possible eclipses in this binary system. Revised elements of period and maximum-light epoch were found necessary to represent photoelectric observations spanning the last 25 years. The observations are used to derive the spectral type of the binary companion; the result of B6 V confirms an earlier conclusion by Madore (1977). Intensity means of magnitude and colors for the Cepheid, freed of the effects of the companion, are derived.

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