1. Ionized Gas in the NGC 3077 Galaxy

   • D. V. Oparin
   • O. V. Egorov
   • A. V. Moiseev

   OriginalPaper 14 January 2021 Pages: 361 - 375

   

2. Quenched Galaxies in Clusters of Galaxies and Their Outskirts

   • F. G. Kopylova
   • A. I. Kopylov

   OriginalPaper 14 January 2021 Pages: 376 - 383

   

3. Distance to the Dorado Group

   • N. A. Tikhonov
   • O. A. Galazutdinova

   OriginalPaper 14 January 2021 Pages: 384 - 393

   

4. Globular Clusters Lost by the Sagittarius Dwarf Spheroidal Galaxy

   • N. R. Arakelyan
   • S. V. Pilipenko
   • M. E. Sharina

   OriginalPaper 14 January 2021 Pages: 394 - 406

   

5. On the Motion of Stars in the Pleiades According to Gaia DR2 Data

   • V. M. Danilov
   • A. F. Seleznev

   OriginalPaper 14 January 2021 Pages: 407 - 424

   

6. Relative Motion in the Hierarchical Triple System ADS48 on the Basis of Gaia DR2 and 26-Inch Refractor of Pulkovo Observatory Data

   • O. V. Kiyaeva
   • R. Ya. Zhuchkov
   • I. S. Izmailov

   OriginalPaper 14 January 2021 Pages: 425 - 436

   

7. Mass Constraint of Several Transiting Planets

   • D. R. Gadelshin
   • G. G. Valyavin
   • A. F. Valeev

   OriginalPaper 14 January 2021 Pages: 437 - 439

   

8. Probable Inner Magnetic Structures of Magnetic Stars. II

   • Yu. V. Glagolevskij
   • A. F. Nazarenko

   OriginalPaper 14 January 2021 Pages: 440 - 446

   

9. Magnetic Fields of Chemically Peculiar and Related Stars. VI. Main Results of 2019 and Near-Future Prospects

   • I. I. Romanyuk

   OriginalPaper 14 January 2021 Pages: 447 - 458

10. Specifics of the Distribution of Orbits of Long-Period Comets in the Inner Part of the Oort Cloud

    • O. V. Kalinicheva
    • Yu. A. Chernetenko

    OriginalPaper 14 January 2021 Pages: 459 - 467

    

11. Improving the Efficiency of High-Resolution Spectroscopy on the 6-m Telescope Using Adaptive Optics Techniques

    • V. G. Klochkova
    • Yu. V. Sheldakova
    • A. V. Kudryashov

    OriginalPaper 14 January 2021 Pages: 468 - 481

    

12. Observations of Radial Velocity Variability in Stars from the Spectra Obtained with the BTA Fiber-Fed Spectrograph in High Spectral Resolution Mode

    • T. E. Burlakova
    • G. G. Valyavin
    • O. I. Korablev

    OriginalPaper 14 January 2021 Pages: 482 - 485

    

13. Zeiss-1000 SAO RAS: Instruments and Methods of Observation

    • V. V. Komarov
    • A. S. Moskvitin
    • V. N. Aitov

    OriginalPaper 14 January 2021 Pages: 486 - 500

    

14. Erratum to: Long-Period Oscillations of Solar Facular Knots

    • A. A. Solov’ev
    • V. V. Smirnova
    • P. V. Strekalova

    Erratum 14 January 2021 Pages: 501 - 501