1986/03/01 by B. A. Skiff, G. W. Lockwood · 194 citations
Physics and Astronomy · Engineering · #Solar and Space Plasma Dynamics #Astronomical Observations and Instrumentation #Stellar, planetary, and galactic studies #Physics #Stars #Astrophysics #Amplitude #Light curve #Variable star #Magnitude (astronomy) #Astronomy #Optics
paper · pdf · doi:10.1086/131763
published in Publications of the Astronomical Society of the Pacific 98, 338 (Institute of Physics)
openalex publication_date 1986/03/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
Light curves in Strömgren b and y for the 1985 season are presented for the uvby standard stars 10 LMi (HD 82635) and 11 LMi (HD 82885). The period of 10 LMi is 40.4 days, with an amplitude of 0.012 magnitude in y. The period of 11 LMi is 18.0 days, with an amplitude of 0.033 magnitude in y. The mechanism of the variability is interpreted as rotational modulation due to active regions on the stars. Observations of 11 LMi as a standard suggest the star was only weakly variable or constant during the interval from 1972 to 1984.