Observations of suspected variables. 2. NSV 1280 Tau = CSV 6048.

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Variables: Pleiades, Variables: Observations

Scientific paper

NSV 1280 (HD 23410, SAO 76156, BD +22°545, Melotte 22 801, ADS 2748 A) is a relatively well observed member of the Pleiades. According to the NSV (Kholopov et al. 1982) it is possibly a rapid, irregular variable with a range, mpg = 6.5 - 7.3, and a spectral type of A0 V. The SAO catalogue gives mpg = 7.7, mv = 7.1 and the same spectral type. The photoelectric values repeated in the literature are V = 6.85 and B-V = 0.04. It is also claimed to be a spectroscopic binary (Abt et al. 1965) but other radial velocity measurements show no variation. The BAA VSS has accumulated 1208 observations of NSV 1280 during the years 1971 - 1987 and 1994. The observations show considerable change in the scatter with time, but no clear variation.

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