Contents

Astronomy Letters

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Vol. 47, No. 5, 2021

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Spectroscopic Redshift Determination for a Sample of Distant Quasars Detected by the SRG Observatory Based on RTT-150 Observations. II

I. F. Bikmaev, E. N. Irtuganov, E. A. Nikolaeva, N. A. Sakhibullin, R. I. Gumerov, A. S. Sklyanov, M. V. Glushkov, I. M. Khamitov, V. D. Borisov, R. A. Burenin, I. A. Zaznobin, R. A. Krivonos, A. R. Lyapin, P. S. Medvedev, A. V. Meshcheryakov, S. Yu. Sazonov, R. A. Sunyaev, G. A. Khorunzhev, and M. R. Gilfanov p. 277  abstract

Type II-P Supernova SN 2018aoq in NGC 4151: Light Curves, Models, and Distance

D. Yu. Tsvetkov, N. N. Pavlyuk, O. V. Vozyakova, N. I. Shatsky, A. M. Tatarnikov, A. A. Nikiforova, P. V. Baklanov, S. I. Blinnikov, M. G. Ushakova, E. G. Larionova, and G. A. Borman p. 291  abstract

Determining the Characteristics of Lan 30 from Optical Observations

N. R. Deminova, V. V. Shimanskii, N. V. Borisov, and M. M. Gabdeev p. 307  abstract

Resonant Orbits in the Problem of Expanding the Reachable Landing Areas on the Surface of Venus

N. A. Eismont, R. R. Nazirov, K. S. Fedyaev, V. A. Zubko, A. A. Belyaev, L. V. Zasova, D. A. Gorinov, and A. V. Simonov p. 316  abstract

Dynamical Substitutes and Energy Surfaces in the Bicircular Sun–Earth–Moon System${}^{\mathbf{*}}$

A. K. Pal and Elbaz I. Abouelmagd p. 331  abstract

On the Evolution of Orbits in a Photo-Gravitational Circular Three-Body Problem: The Inner Problem

A. V. Dobroslavskiy and P. S. Krasilnikov p. 345  abstract

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