Contents

Astronomy Letters

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Vol. 46, No. 9, 2020

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GRB 200415A: Magnetar Giant Flare or Short Gamma-Ray Burst?

P. Yu. Minaev, A. S. Pozanenko p. 573  abstract

Distance to the Seyfert Galaxy NGC 1672 and Its Stellar Structure${}^{\sharp}$

N. A. Tikhonov, O. A. Galazutdinova p. 586  abstract

Early Bolometric Luminosity of SN 2013fs without Photometry

N. N. Chugai p. 595  abstract

H 3-75: The Planetary Nebula with the Binary Central Star NSV 16624

V. P. Arkhipova, N. P. Ikonnikova, M. A. Burlak, A. V. Dodin p. 601  abstract

Orbits and Structure of the Quadruple Systems GJ 225.1 and FIN 332

A. Tokovinin p. 612  abstract

Influence of Collisions with Hydrogen Atoms on Non-LTE Effects for K I and Ca II in Stellar Atmospheres

M. D. Neretina, L. I. Mashonkina, T. M. Sitnova, S. A. Yakovleva, A. K. Belyaev p. 621  abstract

Changes in the Period of the Population II Cepheid CC Lyr

L. N. Berdnikov, A. M. Yacob, E. N. Pastukhova p. 630  abstract

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