Statistics of sunspot activity

December, 1991

Visual indices of solar activity by author's observations

Date01020304050607080910111213141516171819202122232425262728293031Average%
W                       155       155.00100
Wn                       0       0.000.00
Ws                       155       155.00100.00
n                       5       5.00100
A                       0       0.000.00
B                       0       0.000.00
C                       1       1.0020.00
D                       2       2.0040.00
E                       0       0.000.00
F                       1       1.0020.00
G                       0       0.000.00
H                       1       1.0020.00
I                       0       0.000.00
x                       0       0.000.00
r                       0       0.000.00
s                       1       1.0020.00
a                       2       2.0040.00
h                       0       0.000.00
k                       2       2.0040.00
x                       1       1.0020.00
o                       1       1.0020.00
i                       1       1.0020.00
c                       2       2.0040.00
CV                       150       150.00100
CVn                       0       0.000.00
CVs                       150       150.00100.00












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