Determination of the Instants of Totality in Solar Eclipses

Details Determination of the Instants of Totality in Solar Eclipses Determination of the Instants of Totality in Solar Eclipses

Jan 1949

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1949natur.163...63p&link_type=abstract

Nature, Volume 163, Issue 4132, pp. 63 (1949).

Physics

Scientific paper

BANACHIEWICZ proposed in 1928, and Bonsdorff and Lindblad carried out later, the precise determination of the instants of totality at distant places- -in different continents-for calculating such distances. It is a sort of triangulation in which the distance moon-earth serves as a basis. Cinematography of the solar crescent and of a time signal with a teleobjective or with an objective-prism was used. The time of totality was calculated by extra-polation of the length of the solar crescent, by observing the cutting of the crescent by the moon's mountains and by photometry of the `flash spectrum' lines.

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