Activity of the Star ET Dra

  • I. S. SavanovEmail author
  • S. A. Naroenkov
  • M. A. Nalivkin
  • E. S. Dmitrienko

V-band photometric observations of the FK Com type star ET Dra were made at the Zvenigorod observatory (INASAN) during March-April 2018. The new data were used in a solution of the inverse problem of recovering the surface temperature inhomogeneities for ET Dra to study the position of cold regions on its surface which were compared with photometric observations made in 1990.


stars photometry variability activity spots 


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • I. S. Savanov
    • 1
    Email author
  • S. A. Naroenkov
    • 1
  • M. A. Nalivkin
    • 1
  • E. S. Dmitrienko
    • 2
  1. 1.Institute of AstronomyRussian Academy of SciencesMoscowRussia
  2. 2.M. V. Lomonosov Moscow State University, P. K. Shternberg State Institute of AstronomyMoscowRussia

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