Marian Albertovich Kowalski

He was born in Dobrzyń in Poland (called Добжинь in Russian). His Patronymic is alternatively given as Voytekhovich or Voytsekhovich (Войтехович or Войцехович), which suggests his father's name was Wojciech. Confusingly, a few Russian sources even give his name as Marian Albertovich Kovalsky-Voytekhovich, but this seems to be an error.

He graduated from St. Petersburg University . Beginning in 1852 he was director of the Kazan Observatory , and dean of faculty of physics and mathematics in Kazan .

His most important work was on the analysis of the proper motion of 3,136 Star s from James Bradley 's catalog, which was the first usable method to deduce the Rotation of the Milky Way Galaxy .
Based on this work, he disproved that a single massive central body in the center of our galaxy was responsible for the motion of the stars.

In Celestial Mechanics , he found improved methods to deduce a planetary Orbit from observations, and analysed the mathematics of Perturbation s in planetary motions. In particular, he made a more accurate determination of Neptune 's orbit. He also found an improved method of determining the orbits of Binary Star s.

His important papers were published in 1859 in the book ''Recherches astronomiques de l'observatoire de Kasan''.

He died in Kazan and is buried in the Catholic cemetery there [http://www.kcn.ru/tat_ru/religion/catholic/rcchurch.htm]. He was the father of Aleksandr Marianovich Kowalski , who worked at Pulkovo Observatory and died on July 6 1902 at the age of 44.[http://adsabs.harvard.edu//full/seri/PASP./0014//0000207.000.html] [http://adsabs.harvard.edu//full/seri/AN.../0160//0000039.000.html]

Koval'sky Crater on Mars and Koval'skiy Crater on the Moon were named in his honour.

EXTERNAL LINKS

http://www.dobrzyn.pl/histo.htm (in Polish; date of birth and death)

http://www.vgd.ru/K/kovalchk.htm (in Russian)

Photo (in Russian)

Obituary

MNRAS 45 (1885) 208

Information About

Marian Albertovich Kowalski