Lyapin Nicolay Mihaylovich General data:
12.11.1884 - 16.07.1963
Place of birth: Moscow City, Moscow province, Russian Empire
Studied in: Imperial Moscow University (since 1940 M. V. Lomonosov Moscow State University) (1901-1905);
Key interests: celestial mechanics, astrometry, mathematisc
Biography:
He was born on October 31 (according to the Julian calendar or November 12 according to the Gregorian calendar) in 1884 in the Moscow City of Moscow province of the Russian Empire.
In 1901, he graduated from the Alexander Commercial School in Moscow and was awarded the title of personal honorary citizen. In the same year, he entered the mathematics department of the Physics and Mathematics Faculty of the Imperial Moscow University as a free student, graduating in 1905.
During 1904–1907, he worked at the Pulkovo Observatory, where in 1906 he discovered the minor planet of the solar system 1906 WD.
During 1912–1913, he improved his knowledge with prominent French and English astronomers. During 1907–1911, he worked at the observatory of Yuriev University (now Tartu, Estonia). In 1911 he taught at a secondary technical school in Moscow City, during 1911–1912 he taught at the Kremenchug commercial school (now Poltava region in Ukraine).
During 1913–1922, at the invitation of M. Ya. Orlov, he worked at the Odesa Astronomical Observatory. Moreover, during 1920–1922, he held the position of deputy director and at the same time taught at the university and physical-mathematical and polytechnic institutes in Odesa city.
In August 1914, during the observation of a total solar eclipse in the Feodosia city in the Crimea, he took 4 high-quality photographs of the solar corona.
During 1922–1924, the scientist was a professor at the Department of Astronomy of the Crimean University in Simferopol city. Under his leadership, the first 110-mm telescope was launched and regular observations of the sun and stars began.
Since 1924 to 1953, he worked as the head of the Astronomy Department of Rostov University, which was evacuated to the city of Osh in Kyrgyzstan during World War II.
He died on July 16, 1963 in Rostov-on-Don city.
Author of about 30 works on astrometry, practical astronomy, celestial mechanics and mathematics.
Main publications:
1. Ляпин Н. М. Гринвичская обсерватория в прошлом.— РАК на 1915 г., 130 — 162.
2. Ляпин Н. М. Наблюдение Луны, Кратера Mösting A и больших планет репсольдовским меридианным кругом Одесской университетской обсерватории // Зап. Император. Новорос. ун-та. 1914. Вып. 4
3. Ляпин Н. М. Исследование относительных достоинств хронометров и часов, принадлежащих Одесской университетской обсерватории // Зап. Император. Новорос. ун-та. 1915. Вып. 6
4. Ляпин Н. М. Исследование систематических ошибок делений меридианного круга Одесской университетской обсерватории //Зап. Император. Новорос. ун-та. 1915. Вып. 6
Sources:
1 94.158.144.72
2 esu.com.ua
3 Батырев А. А. Николай Михайлович Ляпин (некролог) // Астрон. циркуляр. 1963. № 256.
4 phys.rsu.ru
