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




Extracted from text ... 233 december 2005 solar report Solar Report by Jacques van Delft [ jjvdelft1@yahoo.com ] 2005 September - October Two observers submitted sunspot counts to the Section in September and October (Table 1). They are Jacques van Delft (code DEJV) from Wepener in the Freestate and Rob Blore (RBLO) from Hillcrest (Natal). The monthly mean daily frequency (MDF; calculated as the daily sunspot 2005 September 2005 October DEJV RBLO DEJV RBLO Sunspot count 408 451 54 73 Number of days on which counts were made 20 18 18 16 Smooth sunspot count (Rz) 20.4 25.1 3.0 4.56 Monthly mean frequency ..


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