The Sunspot Observer - Average annual indices of solar activity - Solar activity in 1993 - December, 1993

Statistics of sunspot activity

December, 1993

Visual indices of solar activity by author's observations

Date01020304050607080910111213141516171819202122232425262728293031Average%
W                                 
Wn                                 
Ws                                 
n                                 
A                                 
B                                 
C                                 
D                                 
E                                 
F                                 
G                                 
H                                 
I                                 
x                                 
r                                 
s                                 
a                                 
h                                 
k                                 
x                                 
o                                 
i                                 
c                                 
CV                                 
CVn                                 
CVs