Abstract
Photometry of the spectroscopic binary BD+25°2511 obtained during the 1981, 1982, and 1983 observing seasons shows that it is a variable with a period of about 3.5 days.
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References
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Raveendran, A.V. The light variability of BD+25°2511. Astrophys Space Sci 99, 171–173 (1984). https://doi.org/10.1007/BF00650242
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DOI: https://doi.org/10.1007/BF00650242