Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982baicz..33..314z&link_type=abstract
Astronomical Institutes of Czechoslovakia, Bulletin, vol. 33, no. 5, 1982, p. 314-318.
Astronomy and Astrophysics
Astronomy
4
A Stars, Atmospheric Effects, Electrophotometers, Light Curve, Magnetic Stars, Variable Stars, Atmospheric Attenuation, Earth Atmosphere, Regression Analysis, Stellar Spectrophotometry
Scientific paper
Photoelectric observations of a magnetic Ap star 53 Cam made at the Skalnate Pleso Observatory in 1978 and 1979 are analyzed from the point of view of rapid variability. The observations were made with an intermediate passband filter, effective wavelength 526 nm. Besides the differences in m-value between 53 Cam and the comparison star the behavior of the deflections for the comparison star during the observation runs were also investigated. A strong correlation between the behavior of the comparison and variable star light curve was found; the appearence differs from night to night depending on atmospheric conditions. Each observation run is analyzed in detail and it is concluded that all observed variations are only apparent and due to the variability of atmospheric extinction above the observation site.
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