Sunspot number, also known as Wolf sunspot relative number. That sunspot activity level of an index. By the Zurich Observatory Wolf (jr wolf) made in 1849, which is defined as: r = k (10g + f), where r is the relative sunspot number, g is the surface on the number of observed sunspot groups, f is observed total number of individual sunspots, k is the conversion factor. Wolf take k = 1. k values with the location of the observer, the instruments, methods of observation, visibility and weather observation techniques vary. Any observer's observations with his own observations with the same period in Zurich more available:
k = r2 / (10g + f)
Where the Zurich sunspot relative number. Just that the sun sunspot relative number of sunspots visible hemisphere of the situation. |
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