On the Problem of the Galaxy Alignment with Groups and Clusters H. M. Tovmassian OriginalPaper 17 June 2021 Pages: 141 - 149
Investigation of the Environmental Dependence of Galaxy Age in the CMASS Galaxy Sample of SDSS DR12 Xin-FA Deng OriginalPaper 17 June 2021 Pages: 150 - 159
New Orbit and Estimate of the Mass of the Star 61 Cygni Based on Observations of it in 1819-2019 I. S. IzmailovN. A. ShakhtM. A. Pogodin OriginalPaper 17 June 2021 Pages: 160 - 171
KIC 7732964 – A Possible Candidate FK Com-Type Star E. S. DmitrienkoI. S. SavanovV. B. Puzin OriginalPaper 17 June 2021 Pages: 172 - 177
Activity of Two Young Stars of Solar Type with Planetary Systems from the Ursa Major Moving Group of Stars and the Stream Psc-Eri I. S. Savanov OriginalPaper 17 June 2021 Pages: 178 - 186
PV CEP and V350 CEP: Stars on the Way between FUors and EXors H. R. AndreasyanT. Yu. MagakianA. V. Moiseev OriginalPaper 17 June 2021 Pages: 187 - 202
Oxygen-Rich Cool Stars in the Cepheus Region. New Spectroscopic Observations of Selected Objects from the KP2001 Catalog G. V. PetrosyanK. S. GigoyanG. R. Kostandyan OriginalPaper 17 June 2021 Pages: 203 - 209
Modulation of Galactic Cosmic Rays Due to Magnetic Clouds and Associated Structures in the Interplanetary Space: 1996-2018 M. FadaaqB. Badruddin OriginalPaper 17 June 2021 Pages: 210 - 218
Multilayer Spherical Stellar Clusters with Uniform Density G. S. Bisnovatyi-Kogan OriginalPaper 17 June 2021 Pages: 219 - 227
On the Formation of a Nonequilibrium Chemical Composition in the Shells of Neutron Stars A. Yu. Ignatovskiy OriginalPaper 17 June 2021 Pages: 228 - 243
Solutions for Massless Bosons in the Mannheim-Kazanas Space-Time M. A. DariescuC. Dariescu OriginalPaper 17 June 2021 Pages: 244 - 257
Higher-Dimensional Anisotropic Modified Holographic Ricci Dark Energy Cosmological Model in Lyra Manifold K. DasJ. Bharali OriginalPaper 17 June 2021 Pages: 258 - 275