Up: uvby photometry of 33 stars
Mathys & Hubrig (1997) note that Mathys et al. (1997) indicated that HD 50169
(= BD
1414 = Brewer's star) (Brewer 1953) had a period of
rotation longer than 4 years from measurements of the mean magnetic field
modulus. This is consistent with Babcock (1958)'s observation of a slow
increase in the mean magnetic modulus over a period of three years.
Photometric studies by Hensberge et al. (1981) and Heck et al. (1987)
concluded this star was probably constant, but Heck et al. (1977) noted some
short term variations. We obtained 68 sets of Strömgen observations in
1996-97 and 32 sets in 1997-98. The standard deviations of the means show
that HD 51059 is constant as well as it comparison and check stars. Hipparcos
photometry (see Sect. 5) confirms that this star is apparently
non-variable.
Up: uvby photometry of 33 stars
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