Author: admin
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How it started
In 1899, five years after establishing the first Bulgarian astronomical observatory in Sofia,Marin Bachevarov started regular sunspot observations with his students with the foremost telescope in Bulgaria – a 6-inch refractor [1] . In the mid-XXth century Angel Bonov lays the foundation of solar physics in Bulgaria with hisstudies on the 22- [2] , 44-…