n MNASSA : Monthly Notes of the Astronomical Society of South Africa - Solar report

Volume 65, Issue 5_6
  • ISSN : 0024-8266



Extracted from text ... 8 mnassa vol 65 nos 5 & 6 june 2006 solar report Three observers submitted sunspot counts to the Section during January, February 2006. They were Jacques van Delft (DEJV) from Wepener, Freestate, Rob Blore (RBLO) from Hillcrest, Kwazulu-Natal and Jim & Shirley Knight (KNJS) from Boksburg, Gauteng. January's recorded MMF (Monthly Main Frequency) was 21.9 and it was 3.3 in February. Sunspot Cycle: Monthly Sunspot counts are calculated to form a single, smooth sunspot number and plotted on a graph. Though we only started officially in April 2003 with a monthly number for Southern Africa, ..

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