Image Details
Caption: Figure 2.
Nightly Strömgren (b + y)/2 band photometry of HD 17156 from 10 observing seasons from 2006–07 to 2016–17 (small circles), acquired with the T12 0.80 m APT at Fairborn Observatory. The star is constant from night-to-night within most observing seasons to the limit of our precision. The seasonal mean magnitudes are plotted as the large filled circles and cover a range of 0.00618 mag with a standard deviation from the mean of the seasonal means of 0.00199 mag, indicating low-amplitude year-to-year variability in HD 17156. The seasonal means suggest a stellar cycle of around 10 yr.
© 2023. The Author(s). Published by the American Astronomical Society.