Spotting in stars with a low level of activity,close to solar activity

Data on the variability of the continuum optical emission are used for the first time to estimate the degree of spotting in stars with activity levels similar to that of the sun. It is shown that the amount of spotting increases gradually from the sun to the highly spotted stars for which Alekseev and Gershberg constructed the zonal model for the distribution of spots. A close relationship is found between spotting and the power of the x-ray emission from stars with widely varying levels of activity. __________ Translated from Astrofizika, Vol. 50, No. 2, pp. 233–241 (May 2007).