Extended Radio Sources’ Radiation of External Components V. R. Amirkhanyan OriginalPaper 08 April 2021 Pages: 1 - 5
Ultraluminous X-Ray Sources S. N. FabrikaK. E. AtapinO. N. Sholukhova OriginalPaper 08 April 2021 Pages: 6 - 38
Magnetic Fields of CP Stars in the Orion OB1 Association. IV. Stars of Subgroup 1b I. I. RomanyukE. A. SemenkoD. O. Kudryavtsev OriginalPaper 08 April 2021 Pages: 39 - 54
On the Motion of Multiple Stars in the Pleiades Based on Gaia DR2 V. M. Danilov OriginalPaper 08 April 2021 Pages: 55 - 70
Precise Masses, Ages, and Orbital Parameters of the Binary Systems HIP 11352, HIP 70973, and HIP 72479 Y. M. Al-TawalbehA. M. HusseinM. A. Al-Wardat OriginalPaper 08 April 2021 Pages: 71 - 83
Orbits of Visual Double Stars Discovered by P. Couteau A. E. BaidinV. G. Krechet OriginalPaper 08 April 2021 Pages: 84 - 90
Remarks on Difference of Properties of Am and Ap Stars Yu. V. Glagolevskij OriginalPaper 08 April 2021 Pages: 91 - 101
Stokes-Polarimeter for 1-m Telescope V. L. AfanasievE. S. ShablovinskayaE. A. Malygin OriginalPaper 08 April 2021 Pages: 102 - 108