Discovered by L. V. Zhuravleva MPC designation 2098 Zyskin Discovered 18 August 1972 Orbits Sun Asteroid group Asteroid belt | Discovery date 18 August 1972 Minor planet category main-belt · Vestoid Aphelion 2.73 m | |
Named after Yur'evich Zyskin (surgeon) Alternative names 1972 QE · 1934 NE1957 QH Similar 2058 Róka, 2100 Ra‑Shalom, 2101 Adonis, 2062 Aten, Sun | ||
2098 Zyskin, provisional designation 1972 QE, is a vestoid asteroid from the inner regions of the asteroid belt, about 9 kilometers in diameter. It was discovered by Russian–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnyj on 18 August 1972.
The vestoid or V-type asteroid is also a core member of the Vesta family. Asteroids with these spectral and orbital characteristics are thought to have all originated from the Rheasilvia crater, a large impact crater on the south-polar surface of 4 Vesta, which is the main-belt's second-most-massive asteroid after 1 Ceres. It orbits the Sun at a distance of 2.1–2.7 AU once every 3 years and 9 months (1,378 days). Its orbit has an eccentricity of 0.13 and an inclination of 6° with respect to the ecliptic. First identified as 1934 NE at Johannesburg Observatory, the body's first used observation was taken at Goethe Link Observatory in 1957, when it was identified as 1957 QH, extending the asteroid's observation arc by 15 years prior to its official discovery observation.
A rotational light-curve was obtained for Zyskin from photometric observations made at the U.S. Palomar Transient Factory in California in October 2010. It gave a rotation period of 3.920 hours with a brightness variation of 0.08 magnitude (U=2). According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures between 11.4 and 12.8 kilometers in diameter, and its surface has an albedo between 0.10 and 0.17. The Collaborative Asteroid Lightcurve Link assumes a standard albedo of 0.20 and calculates a diameter of 8.9 kilometers.
The minor planet was named in honor of Lev Yur'evich Zyskin, professor at the Crimean Medical Institute, who was head of its Pulmonary Surgery Center. Lyudmila Zhuravleva also discovered 1858 Lobachevsk on the same day she discovered 2098 Zyskin. She is a prolific astronomer with more than 200 minor planets discovered between 1972 and 1992 and (still) ranks in 61st position on the Minor Planet Center's discoverer-list as of 2015. Naming citation was published on 1 April 1980 (M.P.C. 5283).