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By P Gosselin on 9. July 2016
The sun in May and June 2016 By Frank Bosse and Fritz Vahrenholt (Translated/edited by P Gosselin) Our sun in May was normally active for the cycle. The mean sunspot number (SSN) was 52.1, which was 2/3 of the mean value for month number 90 into the cycle. The mean is calculated from the previously […]