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2017-03-09Synoptic data from year 1919 BASS2000
Between 1928 and 2003, the Observatoire de Paris published solar activity maps and their corresponding data tables, first in the Annals of the Meudon Observatory, then in the Synoptic Maps of the Solar Chromosphere.
In order to make the first 80 years of observations which were available only in paper accessible and usable, the LESIA and the Library of the Observatory have started a project to digitize the publications.
These data (full synoptic maps and data table for filaments) are now avalaibable on the BASS2000 web site starting with Carrington rotation 876 (march 1919).
More details on this project in this PDF.

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Last update: 05 Jan 2010 16:47