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Revised Properties and Dynamical History for the HD 17156 System

  • Authors: Stephen R. Kane, Michelle L. Hill, Paul A. Dalba, Tara Fetherolf, Gregory W. Henry, Sergio B. Fajardo-Acosta, Crystal L. Gnilka, Andrew W. Howard, Steve B. Howell, Howard Isaacson

Stephen R. Kane et al 2023 The Astronomical Journal 165 .

  • Provider: AAS Journals

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.

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