Yakovkin Avenir Alexandrovich General data:
21.05.1887 - 18.11.1974
Place of birth: Blagovishchensky zavod city, Ufa province, Russian Empire
Studied in: Imperial Kazan University (since 2010 ′Kazan (Volga region) Federal University′) (1910);
Key interests: celestial mechanics, theoretical astronomy, instruments and devices, exploration of the Moon. PhD Thesis: On the theory of the solar corona. (1953 Kiev Observatory);
Biography:
He was born May 21, 1887 at the Blagovishchensky Plant city in Ufa province of the Russian Empire
In 1910 graduated from the Physics and Mathematics of the Imperial Kazan University. In 1910-1937 he worked at the V. P. Enhelhardt astronomical observatory of Kazan University, acting assistant in the 1911-1919, Astronomer observer in the 1919-1926, and occupying the position of director of the observatory in 1927. During the 1916-1937 teach at the Kazan University, first as an assistant professor and since 1926 as a professor. According to certain data, he was a student of D. I. Dubyago. During the 1937-1945 he headed the Department of Astronomy of the Ural University, working as Dean for 1939-1943 years.
During the 1945-1952 (according to other dates in 1945-1951) he was a professor at T. G. Shevchenko Kyiv State University, teaching in the Department of Astronomy those space physics, and managing the department of the Astronomical Observatory, and as Dean of the Faculty of Physics in the 1948-1950. In 1951 he was elected a corresponding member of the Ukrainian SSR Academy of Sciences. In 1951-1967 he work in Main Astronomical Observatory of the Ukrainian SSR, defended his PhD dissertation "On the theory of the solar corona." in 1953 he was the director of the observatory during the 1952-1959.
In November 18 1974 he died in Kiev City.
He is author of 70 scientific publications. The main scientific work examining the rotation of the moon and its shape. In 1915-1931 he performed a large number of observations on heliometer Observatory named V. P. Enhelhardt, resulting in treatment which received the best value constant physical libration of the Moon. He established lunar radius dependence of the optical libration in latitude (Yakovkin's effect) and proposed to explain this relationship a number of models of the Moon figures.
He worked as solution of some problems of theoretical astronomy. He is author of a number of original equipment and devices for solving various astronomical problems. During World War II he aircraft designed for special astronomical sextant. In addition, he developed original tselostat, horizontal lunar telescope cassette astrometrical photographing the moon, mechanical machine pre-calculate coatings stars Moon, cometograph, which can be used to determine the trajectory of a comet at three points, a device for solving the Lambert equation, which can be used to determine its elliptical orbit from two observations.
During the war he was awarded the Order of Red Banner of Labor (1944) and the Medal "For Valiant Labor in the Great Patriotic War of 1941-1945." (1945, 1946).
His main research outlined in his book "Regular physical libration of the Moon derived from observations T. Banakhevych in 1910-15" (1928), "The rotation and the figure of the Moon", "Formulas and ephemeris for field observations on the Moon" (co-authored, 1964).
Main publications:
1. Яковкин А.А., Деменко И.М., Мизь Л.Н. Формулы и эфериды для полевых наблюдений на Луне.- К.: Наук. думка, 1964.- 148с.
2. Яковкин А.А. Постоянные физические либрации Луны, выведенные из наблюдений Т. Банахевича в 1910—1915.- Казань, 1928
3. Движение Луны. Небесная механика в помощь астронавтике / Яковкин А.А.// Природа, 1960, № 3
4. Радиус и форма Луны/ Яковкин А.А. // Бюллетень астрономической обсерватории им. В. П. Энгельгардта при Казанском университете. Казань, 1934, № 4, с. 3-15
Sources:
1 Кафедра астрономії та фізики космосу,
Фізичний факультет, Київський національний університет імені Тараса Шевченка. Історія кафедри
2 Hockey T., Trimble V., Williams Th. R., et al. The Biographical Encyclopedia of Astronomers. — New York: Springer, 2013.—Vol. 1, 2.
3 Pavlenko Ya. V., Vavilova I. B., Kostiuk Т. Astronomy in Ukraine. Organizations and strategies in astronomy. — Springer-Verlag, 2005.—Vol. 6.—P. 6
4 astronomers.ru
