Chronocinematograph
# Chronocinematograph

Chronocinematograph is an astronomical instrument consisting of a film camera, chronometer and $chronograph.^{:15}^{:284–285}$ The device records images using a more precise timetable for observing an eclipse. It was invented in 1927 by a Polish astronomer, mathematician and geodesist Tadeusz Banachiewicz for observing total solar $eclipses.^{:15}^{:284–285}$ During the same year, Banachiewcz used his device for solar observations in Lapland (Sweden), then in USA (1932) and Greece, Japan and Siberia $(1936).^{:15}^{:286}$

The invention enhanced the precision for determining the time of an eclipse, due to more precisely timed photos of Baily's $beads,^{:15}^{:284–285}$ and quantifying the duration of totality. This could not have been observed as closely as before due to the brightness of the $sun.^{:15}^{:284–286}$

