Statistics of sunspot activity
September, 2006
Visual indices of solar activity by National Geophysical Data Center
| Date | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | Average | % |
| W | 30.40 | 18.60 | 0.00 | 0.00 | 24.80 | 37.86 | 38.75 | 42.50 | 45.17 | 42.00 | 35.40 | 29.17 | 28.17 | 15.20 | 12.00 | 17.20 | 18.33 | 11.00 | 12.83 | 11.83 | 12.20 | 16.17 | 12.80 | 12.75 | 11.00 | 12.00 | 11.00 | 16.00 | 35.29 | 36.67 | 21.57 | 100 |
| Wn | 0.00 | 2.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.83 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.83 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.75 | 12.00 | 11.00 | 2.60 | 7.86 | 0.00 | 1.40 | 6.50 |
| Ws | 30.40 | 16.40 | 0.00 | 0.00 | 24.80 | 37.86 | 38.75 | 42.50 | 43.33 | 42.00 | 35.40 | 29.17 | 28.17 | 15.20 | 12.00 | 17.20 | 18.33 | 11.00 | 11.00 | 11.83 | 12.20 | 16.17 | 12.80 | 12.75 | 8.25 | 0.00 | 0.00 | 13.40 | 27.43 | 36.67 | 20.17 | 93.50 |
| n | 2.00 | 1.40 | 0.00 | 0.00 | 2.00 | 2.86 | 3.00 | 2.50 | 2.83 | 2.67 | 2.60 | 2.17 | 2.17 | 1.20 | 1.00 | 1.40 | 1.67 | 1.00 | 1.17 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.40 | 3.00 | 3.00 | 1.63 | 100 |
| A | 0.00 | 0.40 | 0.00 | 0.00 | 0.20 | 0.14 | 0.00 | 0.17 | 0.67 | 0.17 | 0.00 | 0.33 | 0.17 | 0.20 | 0.00 | 0.20 | 0.33 | 0.33 | 0.33 | 0.33 | 0.20 | 0.00 | 0.00 | 0.25 | 0.75 | 0.50 | 1.00 | 0.40 | 1.14 | 0.17 | 0.28 | 17.11 |
| B | 0.00 | 0.40 | 0.00 | 0.00 | 0.40 | 0.71 | 0.50 | 0.17 | 0.17 | 0.50 | 0.40 | 0.67 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.25 | 0.00 | 0.50 | 0.00 | 0.20 | 0.00 | 0.00 | 0.17 | 10.60 |
| C | 0.40 | 0.40 | 0.00 | 0.00 | 0.00 | 0.57 | 1.00 | 0.83 | 0.50 | 0.83 | 0.20 | 0.67 | 0.50 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.60 | 0.83 | 0.60 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 0.67 | 0.32 | 19.39 |
| D | 0.60 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.50 | 0.67 | 0.67 | 0.40 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.14 | 8.57 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.34 |
| F | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.34 |
| G | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| H | 0.20 | 0.00 | 0.00 | 0.00 | 0.20 | 0.57 | 0.00 | 0.33 | 0.50 | 0.17 | 0.40 | 0.17 | 0.17 | 0.20 | 0.00 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.11 | 7.03 |
| I | 0.80 | 0.00 | 0.00 | 0.00 | 1.20 | 0.86 | 1.00 | 0.50 | 0.17 | 0.17 | 1.20 | 0.17 | 1.17 | 0.60 | 1.00 | 0.80 | 1.33 | 0.67 | 0.83 | 0.50 | 0.20 | 0.00 | 0.40 | 0.25 | 0.25 | 0.00 | 0.00 | 0.80 | 1.43 | 1.67 | 0.60 | 36.62 |
| x | 0.00 | 0.80 | 0.00 | 0.00 | 0.60 | 0.86 | 0.50 | 0.33 | 0.83 | 0.67 | 0.40 | 1.00 | 0.33 | 0.20 | 0.00 | 0.20 | 0.33 | 0.33 | 0.33 | 0.33 | 0.20 | 0.17 | 0.00 | 0.50 | 0.75 | 1.00 | 1.00 | 0.60 | 1.14 | 0.17 | 0.45 | 27.71 |
| r | 0.00 | 0.20 | 0.00 | 0.00 | 0.20 | 0.43 | 0.25 | 0.33 | 0.17 | 0.50 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.40 | 0.17 | 0.60 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.43 | 0.33 | 0.18 | 10.89 |
| s | 0.20 | 0.20 | 0.00 | 0.00 | 0.80 | 0.57 | 1.00 | 0.33 | 0.67 | 0.17 | 0.20 | 0.00 | 0.67 | 0.20 | 0.80 | 0.40 | 1.00 | 0.67 | 0.67 | 0.17 | 0.20 | 0.50 | 0.40 | 0.50 | 0.25 | 0.00 | 0.00 | 0.40 | 0.43 | 1.67 | 0.44 | 26.62 |
| a | 1.60 | 0.20 | 0.00 | 0.00 | 0.20 | 0.43 | 1.25 | 1.00 | 0.33 | 0.83 | 0.60 | 0.67 | 0.67 | 0.40 | 0.20 | 0.40 | 0.33 | 0.00 | 0.17 | 0.17 | 0.20 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.86 | 0.67 | 0.39 | 23.94 |
| h | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.17 | 0.00 | 0.00 | 0.17 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.04 | 2.18 |
| k | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.57 | 0.00 | 0.50 | 0.67 | 0.33 | 0.40 | 0.50 | 0.33 | 0.20 | 0.00 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.14 | 8.66 |
| x | 1.00 | 0.40 | 0.00 | 0.00 | 1.60 | 1.57 | 1.00 | 1.00 | 1.33 | 0.50 | 1.60 | 0.67 | 1.50 | 1.00 | 1.00 | 1.40 | 1.67 | 1.00 | 1.17 | 0.83 | 0.40 | 0.00 | 0.40 | 0.50 | 1.00 | 0.50 | 1.00 | 1.20 | 2.71 | 1.83 | 0.99 | 60.76 |
| o | 0.80 | 1.00 | 0.00 | 0.00 | 0.40 | 0.71 | 1.75 | 1.17 | 0.83 | 1.67 | 1.00 | 1.33 | 0.67 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.60 | 0.67 | 0.60 | 0.50 | 0.00 | 0.50 | 0.00 | 0.20 | 0.29 | 1.00 | 0.54 | 32.74 |
| i | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.57 | 0.25 | 0.33 | 0.67 | 0.50 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.11 | 6.50 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| CV | 29.40 | 8.80 | 0.00 | 0.00 | 18.60 | 34.29 | 28.75 | 38.33 | 54.67 | 40.67 | 30.80 | 28.00 | 31.33 | 20.60 | 9.40 | 21.80 | 12.67 | 7.00 | 8.17 | 4.67 | 5.80 | 8.33 | 7.00 | 6.00 | 3.25 | 1.50 | 1.00 | 7.60 | 18.71 | 37.83 | 17.50 | 100 |
| CVn | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 1.50 | 1.00 | 0.40 | 0.71 | 0.00 | 0.15 | 0.84 |
| CVs | 29.40 | 8.60 | 0.00 | 0.00 | 18.60 | 34.29 | 28.75 | 38.33 | 54.50 | 40.67 | 30.80 | 28.00 | 31.33 | 20.60 | 9.40 | 21.80 | 12.67 | 7.00 | 8.00 | 4.67 | 5.80 | 8.33 | 7.00 | 6.00 | 3.00 | 0.00 | 0.00 | 7.20 | 18.00 | 37.83 | 17.35 | 99.16 |
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