Statistics of sunspot activity
September, 2010
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 | 32.00 | 55.33 | 45.00 | 49.80 | 45.67 | 25.25 | 12.40 | 11.00 | 11.00 | 11.00 | 13.20 | 17.00 | 19.43 | 23.60 | 22.50 | 36.00 | 40.00 | 46.40 | 39.40 | 35.00 | 27.40 | 25.75 | 31.67 | 33.00 | 41.75 | 50.40 | 48.50 | 42.00 | 38.33 | 36.33 | 32.20 | 100 |
| Wn | 32.00 | 55.33 | 45.00 | 49.80 | 45.67 | 25.25 | 12.40 | 11.00 | 11.00 | 0.00 | 2.20 | 6.60 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.40 | 13.25 | 18.50 | 20.83 | 29.25 | 38.60 | 37.50 | 32.83 | 38.33 | 32.17 | 18.73 | 58.16 |
| Ws | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 11.00 | 11.00 | 10.40 | 19.43 | 23.60 | 22.50 | 36.00 | 40.00 | 46.40 | 39.40 | 35.00 | 23.00 | 12.50 | 13.17 | 12.17 | 12.50 | 11.80 | 11.00 | 9.17 | 0.00 | 4.17 | 13.47 | 41.84 |
| n | 2.33 | 4.33 | 3.25 | 3.00 | 2.33 | 1.50 | 1.00 | 1.00 | 1.00 | 1.00 | 1.20 | 1.40 | 1.29 | 1.40 | 1.33 | 1.50 | 2.20 | 2.60 | 2.40 | 2.40 | 2.20 | 2.00 | 2.00 | 2.00 | 2.25 | 2.80 | 2.83 | 2.67 | 2.00 | 2.33 | 2.05 | 100 |
| A | 0.00 | 0.17 | 0.50 | 0.60 | 0.50 | 0.25 | 0.20 | 1.00 | 1.00 | 0.00 | 0.20 | 0.60 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.20 | 0.40 | 0.60 | 0.80 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 0.50 | 0.17 | 0.00 | 0.33 | 0.29 | 14.27 |
| B | 0.33 | 1.33 | 0.25 | 0.80 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 0.20 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.17 | 0.50 | 0.17 | 0.67 | 0.18 | 8.88 |
| C | 1.50 | 1.33 | 1.25 | 0.20 | 0.33 | 0.75 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 1.00 | 0.40 | 0.50 | 0.50 | 0.40 | 0.40 | 0.80 | 0.40 | 0.20 | 0.25 | 0.33 | 0.17 | 0.50 | 0.20 | 0.00 | 0.00 | 0.33 | 0.50 | 0.44 | 21.20 |
| D | 0.17 | 0.00 | 0.25 | 0.40 | 0.83 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 0.60 | 0.40 | 0.20 | 0.00 | 0.75 | 0.17 | 0.00 | 0.00 | 0.00 | 0.17 | 0.33 | 0.67 | 0.67 | 0.21 | 10.40 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.20 | 0.20 | 0.00 | 0.00 | 0.00 | 0.17 | 0.17 | 0.50 | 1.00 | 0.67 | 0.67 | 0.83 | 0.17 | 0.17 | 8.15 |
| F | 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 | 0.20 | 0.17 | 0.25 | 0.60 | 0.20 | 0.40 | 0.20 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 3.60 |
| G | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.40 | 0.17 | 0.50 | 0.40 | 0.60 | 0.20 | 0.20 | 0.20 | 0.25 | 0.50 | 0.67 | 0.25 | 0.00 | 0.17 | 0.17 | 0.00 | 0.00 | 0.16 | 7.91 |
| H | 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 | 0.20 | 0.20 | 0.50 | 0.50 | 0.67 | 0.25 | 0.60 | 0.33 | 0.17 | 0.00 | 0.00 | 0.11 | 5.55 |
| I | 0.33 | 1.50 | 1.00 | 1.00 | 0.67 | 0.25 | 0.20 | 0.00 | 0.00 | 1.00 | 1.00 | 0.20 | 0.29 | 0.20 | 0.33 | 0.25 | 0.00 | 0.40 | 0.00 | 0.00 | 0.40 | 0.25 | 0.33 | 0.33 | 0.50 | 0.40 | 0.83 | 0.67 | 0.00 | 0.00 | 0.41 | 20.04 |
| x | 0.33 | 1.50 | 0.75 | 1.40 | 0.50 | 0.25 | 0.20 | 1.00 | 1.00 | 0.00 | 0.20 | 0.60 | 0.00 | 0.20 | 0.17 | 0.00 | 0.00 | 0.20 | 0.40 | 1.20 | 1.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.60 | 0.67 | 0.67 | 0.17 | 1.00 | 0.48 | 23.15 |
| r | 0.17 | 1.17 | 0.75 | 0.60 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.20 | 0.29 | 0.20 | 0.17 | 0.00 | 0.20 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.17 | 0.33 | 0.18 | 8.94 |
| s | 0.83 | 1.17 | 1.25 | 1.00 | 1.17 | 0.50 | 0.20 | 0.00 | 0.00 | 1.00 | 0.60 | 0.40 | 0.29 | 0.20 | 0.33 | 1.25 | 0.60 | 0.80 | 0.80 | 0.60 | 0.00 | 0.25 | 0.17 | 0.50 | 0.75 | 1.00 | 0.67 | 0.83 | 0.50 | 0.17 | 0.59 | 28.95 |
| a | 1.00 | 0.50 | 0.50 | 0.00 | 0.17 | 0.75 | 0.60 | 0.00 | 0.00 | 0.00 | 0.20 | 0.20 | 0.57 | 0.60 | 0.50 | 0.00 | 0.80 | 1.20 | 0.80 | 0.00 | 0.40 | 0.50 | 0.83 | 0.50 | 0.75 | 0.20 | 0.33 | 0.33 | 0.50 | 0.33 | 0.44 | 21.24 |
| h | 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 | 0.40 | 0.00 | 0.00 | 0.20 | 0.20 | 0.75 | 0.17 | 0.17 | 0.25 | 0.20 | 0.50 | 0.17 | 0.33 | 0.00 | 0.11 | 5.42 |
| k | 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 | 0.20 | 0.17 | 0.25 | 0.20 | 0.20 | 0.40 | 0.40 | 0.60 | 0.50 | 0.67 | 0.83 | 0.25 | 0.60 | 0.67 | 0.67 | 0.33 | 0.50 | 0.25 | 12.31 |
| x | 0.33 | 1.67 | 1.50 | 1.60 | 1.17 | 0.50 | 0.40 | 1.00 | 1.00 | 1.00 | 1.20 | 0.80 | 0.29 | 0.20 | 0.50 | 0.25 | 0.00 | 0.60 | 0.40 | 0.80 | 1.40 | 0.75 | 0.83 | 1.00 | 0.75 | 1.60 | 1.67 | 1.00 | 0.00 | 0.33 | 0.82 | 39.86 |
| o | 1.67 | 2.50 | 1.25 | 0.60 | 0.17 | 0.25 | 0.60 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 0.86 | 1.00 | 0.67 | 1.00 | 1.20 | 1.40 | 1.20 | 1.40 | 0.60 | 0.50 | 0.83 | 0.67 | 0.75 | 0.20 | 0.33 | 0.67 | 0.83 | 1.17 | 0.76 | 37.22 |
| i | 0.33 | 0.17 | 0.50 | 0.80 | 1.00 | 0.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.20 | 0.17 | 0.25 | 1.00 | 0.60 | 0.80 | 0.20 | 0.20 | 0.75 | 0.33 | 0.33 | 0.75 | 0.80 | 0.83 | 1.00 | 1.17 | 0.83 | 0.46 | 22.60 |
| 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 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.32 |
| CV | 20.83 | 24.17 | 25.25 | 20.00 | 29.33 | 16.50 | 9.80 | 1.00 | 1.00 | 10.00 | 8.40 | 10.60 | 14.43 | 24.80 | 20.00 | 35.75 | 62.40 | 48.40 | 46.60 | 40.20 | 38.80 | 67.00 | 50.17 | 56.67 | 43.75 | 61.60 | 65.83 | 58.00 | 55.67 | 35.83 | 33.43 | 100 |
| CVn | 20.83 | 24.17 | 25.25 | 20.00 | 29.33 | 16.50 | 9.80 | 1.00 | 1.00 | 0.00 | 0.20 | 0.60 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.60 | 33.00 | 22.50 | 28.67 | 26.75 | 35.40 | 46.83 | 45.17 | 55.67 | 35.17 | 15.98 | 47.81 |
| CVs | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 10.00 | 8.20 | 10.00 | 14.43 | 24.80 | 20.00 | 35.75 | 62.40 | 48.40 | 46.60 | 40.20 | 37.20 | 34.00 | 27.67 | 28.00 | 17.00 | 26.20 | 19.00 | 12.83 | 0.00 | 0.67 | 17.44 | 52.19 |
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