The Photometric Period of V1674 Herculis (Nova Her 2021)

Volume 49 number 2 (2021)

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Richard E. Schmidt

Burleith Observatory, 1810 35th Street NW, Washington, DC 20007; schmidt.rich@gmail.com

Sergei Yu. Shugarov

Astronomical Institute of Slovak Academy of Sciences, Tatranská Lomnica, Slovakia; and Sternberg Astronomical Institute, M. V. Lomonosov Moscow State University, Moscow, Russia

Marina D. Afonina

Sternberg Astronomical Institute, M. V. Lomonosov Moscow State Univ., Moscow, Russia; and Faculty of Physics, M. V. Lomonosov Moscow State University, Moscow, Russia

Abstract

A photometric study of the fast galactic nova V1674 Herculis (Nova Her 2021, TCP J18573095+1653396) was undertaken at the Burleith Observatory in Washington, DC, and supplemented with photometry from the Crimean Laboratory of the Sternberg Astronomical Institute and the Astronomical Institute of the Slovak Academy of Science. A total of 979 CCD observations were obtained over a time span of 53.8 days, yielding an orbital period: 0.152934 d ± 0.000034 d, epoch (HJD) of minimum light 2459408.74789.