Contents

Astronomy Letters

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Vol. 47, No. 7, 2021

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Observation of a Very Massive Galaxy Cluster at $\boldsymbol{z}$ = 0.76 in the SRG/eROSITA All-Sky Survey

R. A. Burenin, I. F. Bikmaev, M. R. Gilfanov, A. A. Grokhovskaya, S. N. Dodonov, M. V. Eselevich, I. A. Zaznobin, E. N. Irtuganov, N. S. Lyskova, P. S. Medvedev, A. V. Meshcheryakov, A. V. Moiseev, S. Yu. Sazonov, A. A. Starobinsky, R. A. Sunyaev, R. I. Uklein, I. I. Khabibullin, I. M. Khamitov, and E. M. Churazov p. 443  abstract

Study of the Influence of an Evolving Galactic Potential on the Orbital Properties of 152 Globular Clusters with Data from the Gaia EDR3 Catalogue

A. T. Bajkova, A. A. Smirnov, and V. V. Bobylev p. 454  abstract

MLS120126:042313+212951—A New Eclipsing Cataclysmic Variable in the Period Gap

A. I. Kolbin, N. V. Borisov, A. S. Moskvitin, V. N. Aitov, and S. S. Kotov p. 474  abstract

Multicolor Photometry and Peculiarities of the Spectrum for the post-AGB Candidate AU Vulpeculae (IRAS 20160+2734)

N. P. Ikonnikova, V. I. Shenavrin, G. V. Komissarova, M. A. Burlak, I. A. Shaposhnikov, A. A. Belinskii, V. F. Esipov, A. M. Tatarnikov, A. V. Dodin, and S. G. Zheltoukhov p. 485  abstract

Parametric Thermal Model for the Evolution of the Earth

M. Yu. Reshetnyak p. 505  abstract

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