engleski

Bošković's determination of the solar rotation elements in the 18th century using his own observations of sunspot's positions

Ruđer Bošković (1711-1787) observed sunspots on the disk of the Sun during 12th to 29th September 1777 in France. His method is based on: 1) his first dissertation about Sunspots De Maculis solaribus (1736) in Latin, describing his geometrical and planar trigonometrical methods in 7 pages with 6 pictures, and 2) detailed calculations elaborated in Opera pertinentia astronomiam ad opticam, Tomus V, Opuscule II (1785) in old Franch, recently translated in Croatian, in 104 pages and 9 pictures. Bošković's method, formulas and drawings are described in detail in the Opuscule II with an example numerically elaborated in detail, containing his own observational data. In the appendix all his observations are presented. In the 8th and 14th chapters Bošković describes his reflexions on science in the view of contemporary scientific research and related to the scientists which were then active. One of the milestones of this work is the translation of the old French text into Croatian language which reveals Bošković's way of thinking about the topic under consideration.

Sunspots ; Bošković ; solar rotation

Sažetak njegov naslov i ključne riječi u ovoj bibliografiji i na posteru u privitku su nakon recenzije. Book of abstract: 1. na stranici 40 sažetak njegov naslov i ključne riječi prije recenzije zbog slučajnog propusta. 2. na stranici 16 u List of posters pod rednim brojem 17 ovaj poster je izložen i označen brojem 18 kao u privitku.