Statistics of sunspot activity
April, 1993
Visual indices of solar activity by author's observations
Date | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | Average | % |
W | 88 | 77 | 103 | 78 | 98 |   | 130 | 102 | 102 |   |   |   |   | 12 |   |   | 53 | 62 |   |   |   |   | 85 |   | 87 | 62 | 82 |   | 43 |   | 79.00 | 100 |
Wn | 23 | 19 | 17 | 13 | 15 |   | 0 | 0 | 20 |   |   |   |   | 12 |   |   | 41 | 47 |   |   |   |   | 21 |   | 44 | 44 | 34 |   | 13 |   | 22.69 | 28.72 |
Ws | 65 | 58 | 86 | 65 | 83 |   | 130 | 102 | 82 |   |   |   |   | 0 |   |   | 12 | 15 |   |   |   |   | 64 |   | 43 | 18 | 48 |   | 30 |   | 56.31 | 71.28 |
n | 5 | 4 | 5 | 5 | 5 |   | 4 | 2 | 3 |   |   |   |   | 1 |   |   | 4 | 4 |   |   |   |   | 5 |   | 5 | 3 | 5 |   | 3 |   | 3.94 | 100 |
A | 1 | 0 | 0 | 0 | 0 |   | 1 | 0 | 0 |   |   |   |   | 0 |   |   | 0 | 0 |   |   |   |   | 0 |   | 1 | 0 | 0 |   | 0 |   | 0.19 | 4.76 |
B | 0 | 0 | 0 | 0 | 0 |   | 0 | 0 | 0 |   |   |   |   | 1 |   |   | 2 | 1 |   |   |   |   | 0 |   | 0 | 0 | 0 |   | 1 |   | 0.31 | 7.94 |
C | 1 | 2 | 1 | 0 | 1 |   | 1 | 0 | 0 |   |   |   |   | 0 |   |   | 1 | 2 |   |   |   |   | 1 |   | 1 | 0 | 0 |   | 0 |   | 0.69 | 17.46 |
D | 1 | 2 | 2 | 1 | 1 |   | 0 | 0 | 0 |   |   |   |   | 0 |   |   | 1 | 0 |   |   |   |   | 1 |   | 1 | 1 | 3 |   | 2 |   | 1.00 | 25.40 |
E | 1 | 0 | 1 | 2 | 1 |   | 0 | 0 | 1 |   |   |   |   | 0 |   |   | 0 | 1 |   |   |   |   | 2 |   | 2 | 1 | 1 |   | 0 |   | 0.81 | 20.63 |
F | 0 | 0 | 0 | 0 | 0 |   | 2 | 2 | 2 |   |   |   |   | 0 |   |   | 0 | 0 |   |   |   |   | 0 |   | 0 | 0 | 0 |   | 0 |   | 0.38 | 9.52 |
G | 1 | 0 | 1 | 0 | 0 |   | 0 | 0 | 0 |   |   |   |   | 0 |   |   | 0 | 0 |   |   |   |   | 0 |   | 0 | 1 | 0 |   | 0 |   | 0.19 | 4.76 |
H | 0 | 0 | 0 | 2 | 2 |   | 0 | 0 | 0 |   |   |   |   | 0 |   |   | 0 | 0 |   |   |   |   | 0 |   | 0 | 0 | 1 |   | 0 |   | 0.31 | 7.94 |
I | 0 | 0 | 0 | 0 | 0 |   | 0 | 0 | 0 |   |   |   |   | 0 |   |   | 0 | 0 |   |   |   |   | 1 |   | 0 | 0 | 0 |   | 0 |   | 0.06 | 1.59 |
x | 1 | 0 | 0 | 0 | 0 |   | 1 | 0 | 0 |   |   |   |   | 1 |   |   | 2 | 1 |   |   |   |   | 0 |   | 1 | 0 | 0 |   | 1 |   | 0.50 | 12.70 |
r | 0 | 0 | 0 | 0 | 0 |   | 0 | 0 | 0 |   |   |   |   | 0 |   |   | 1 | 0 |   |   |   |   | 1 |   | 0 | 0 | 1 |   | 0 |   | 0.19 | 4.76 |
s | 1 | 0 | 0 | 0 | 1 |   | 1 | 0 | 0 |   |   |   |   | 0 |   |   | 0 | 1 |   |   |   |   | 0 |   | 1 | 0 | 3 |   | 1 |   | 0.56 | 14.29 |
a | 2 | 2 | 4 | 4 | 4 |   | 0 | 0 | 0 |   |   |   |   | 0 |   |   | 1 | 2 |   |   |   |   | 4 |   | 3 | 2 | 0 |   | 1 |   | 1.81 | 46.03 |
h | 0 | 0 | 0 | 0 | 0 |   | 0 | 0 | 0 |   |   |   |   | 0 |   |   | 0 | 0 |   |   |   |   | 0 |   | 0 | 1 | 1 |   | 0 |   | 0.13 | 3.17 |
k | 1 | 2 | 1 | 1 | 0 |   | 2 | 2 | 3 |   |   |   |   | 0 |   |   | 0 | 0 |   |   |   |   | 0 |   | 0 | 0 | 0 |   | 0 |   | 0.75 | 19.05 |
x | 1 | 0 | 0 | 2 | 2 |   | 1 | 0 | 0 |   |   |   |   | 0 |   |   | 0 | 0 |   |   |   |   | 1 |   | 1 | 0 | 1 |   | 0 |   | 0.56 | 14.29 |
o | 1 | 3 | 3 | 0 | 2 |   | 1 | 0 | 0 |   |   |   |   | 1 |   |   | 3 | 3 |   |   |   |   | 1 |   | 2 | 2 | 2 |   | 1 |   | 1.56 | 39.68 |
i | 3 | 1 | 0 | 2 | 0 |   | 0 | 0 | 1 |   |   |   |   | 0 |   |   | 1 | 0 |   |   |   |   | 1 |   | 0 | 0 | 1 |   | 2 |   | 0.75 | 19.05 |
c | 0 | 0 | 2 | 1 | 1 |   | 2 | 2 | 2 |   |   |   |   | 0 |   |   | 0 | 1 |   |   |   |   | 2 |   | 2 | 1 | 1 |   | 0 |   | 1.06 | 26.98 |
CV | 105 | 109 | 134 | 115 | 79 |   | 126 | 114 | 161 |   |   |   |   | 2 |   |   | 29 | 53 |   |   |   |   | 95 |   | 98 | 98 | 135 |   | 50 |   | 93.94 | 100 |
CVn | 29 | 38 | 8 | 7 | 7 |   | 0 | 0 | 47 |   |   |   |   | 2 |   |   | 27 | 45 |   |   |   |   | 32 |   | 57 | 78 | 84 |   | 25 |   | 30.38 | 32.34 |
CVs | 76 | 71 | 126 | 108 | 72 |   | 126 | 114 | 114 |   |   |   |   | 0 |   |   | 2 | 8 |   |   |   |   | 63 |   | 41 | 20 | 51 |   | 25 |   | 63.56 | 67.66 |
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