Hinc itur ad astra


Zebrowski, T. Specimen scientiae mathematicae ex trigonometria sphaerica, astronomia tam sphaerica quam theorica... Vilnius, 1754.

Lithuanian mathematician, astronomer, architect and creator of Vilnius University astronomy observatory (1753 ), who carried on astronomical observations of Jupiter satellites and who in 1756 estimated the geographic latitude of Vilnius– 54˚35´38´´ of Northern latitude (according to the current data Vilnius city geographic position is : 54˚41´ Northern latitude and 25˚17´ Eastern longitude) Tomas Žebrauskas‘s (1714–1758) program of the course in trigonometry, astronomy and mechanics: Mathematical science examination in spherical trigonometry, spherical and theoretical astronomy