1. Deviations from Spherical Symmetry, Typical Parameters of the Spherical Collapse Model, and Dark Energy Cosmologies

   • A. Del Popolo
   • Xiguo Lee

   OriginalPaper 31 July 2018 Pages: 475 - 482

2. Comparison of Dimensionless Parameters in Astrophysical MHD Systems and in Laboratory Experiments

   • E. P. Kurbatov
   • D. V. Bisikalo
   • S. Chen

   OriginalPaper 31 July 2018 Pages: 483 - 491

3. Features of the Flow Structure in the Vicinity of the Inner Lagrangian Point in Polars

   • P. B. Isakova
   • A. G. Zhilkin
   • D. V. Bisikalo

   OriginalPaper 31 July 2018 Pages: 492 - 501

4. Kinematic Groups in the Corona of the Ursa Majoris Flow Indicated by Gaia Data

   • S. V. Vereshchagin
   • N. V. Chupina
   • E. S. Postnikova

   OriginalPaper 31 July 2018 Pages: 502 - 512

5. Superflares on Giant Stars

   • M. M. Katsova
   • L. L. Kitchatinov
   • D. D. Sokoloff

   OriginalPaper 31 July 2018 Pages: 513 - 519

6. Cyclic Orbital-period Variations in Eclipsing Binary Systems with Rapid Period Decreases: TU Her, TY Peg, and Y Psc

   • A. I. Khaliullina

   OriginalPaper 31 July 2018 Pages: 520 - 531

7. Activity of Young Dwarfs with Planetary Systems: EPIC 211901114 and K2–33

   • I. S. Savanov
   • E. S. Dmitrienko
   • J. C. Pandey

   OriginalPaper 31 July 2018 Pages: 532 - 541

8. The Deviation of the Lunar Center of Mass to the East of the Direction Toward the Earth. A Mechanism Based on Orbital Evolution

   • B. P. Kondratyev

   OriginalPaper 31 July 2018 Pages: 542 - 550