Statistics of sunspot activity
December, 2005
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 | 31 | Average | % |
| W | 66.50 | 65.50 | 77.33 | 71.33 | 75.00 | 53.00 | 23.00 | 37.00 | 36.00 | 51.33 | 48.50 | 43.00 | 45.50 | 54.00 | 45.33 | 43.00 | 39.25 | 37.67 | 64.50 | 51.80 | 51.00 | 71.33 | 44.60 | 65.75 | 62.33 | 80.33 | 68.33 | 60.50 | 59.33 | 64.75 | 52.67 | 55.14 | 100 |
| Wn | 14.00 | 15.75 | 25.67 | 23.00 | 11.00 | 12.00 | 11.00 | 11.50 | 17.00 | 25.33 | 24.00 | 30.67 | 25.75 | 19.00 | 16.00 | 16.67 | 13.25 | 13.33 | 14.75 | 13.40 | 18.00 | 38.00 | 31.80 | 38.25 | 36.00 | 57.00 | 45.33 | 37.50 | 40.33 | 38.75 | 30.33 | 24.66 | 44.71 |
| Ws | 52.50 | 49.75 | 51.67 | 48.33 | 64.00 | 41.00 | 12.00 | 25.50 | 19.00 | 26.00 | 24.50 | 12.33 | 19.75 | 35.00 | 29.33 | 26.33 | 26.00 | 24.33 | 49.75 | 38.40 | 33.00 | 33.33 | 12.80 | 27.50 | 26.33 | 23.33 | 23.00 | 23.00 | 19.00 | 26.00 | 22.33 | 30.49 | 55.29 |
| n | 4.00 | 3.50 | 4.00 | 4.00 | 4.00 | 3.67 | 2.00 | 3.00 | 3.00 | 4.00 | 4.00 | 3.00 | 3.00 | 3.33 | 3.00 | 3.00 | 2.75 | 2.67 | 4.00 | 3.20 | 3.60 | 4.33 | 3.00 | 5.00 | 4.67 | 6.00 | 5.33 | 5.00 | 4.33 | 5.00 | 4.33 | 3.80 | 100 |
| A | 0.50 | 0.25 | 0.00 | 0.67 | 0.00 | 0.33 | 0.00 | 0.50 | 0.00 | 0.00 | 0.50 | 0.33 | 0.25 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 1.00 | 0.20 | 0.40 | 0.33 | 0.00 | 0.75 | 1.00 | 0.67 | 0.33 | 0.00 | 0.00 | 0.00 | 0.67 | 0.30 | 7.87 |
| B | 1.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 1.67 | 0.20 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 3.78 |
| C | 0.50 | 0.75 | 0.67 | 1.33 | 1.00 | 1.33 | 0.50 | 1.00 | 0.50 | 1.67 | 1.50 | 0.67 | 0.25 | 1.00 | 1.00 | 0.67 | 1.25 | 1.33 | 1.50 | 0.20 | 0.40 | 1.67 | 0.60 | 0.50 | 1.00 | 2.67 | 1.67 | 1.25 | 1.67 | 1.50 | 1.00 | 1.05 | 27.64 |
| D | 1.50 | 1.00 | 1.67 | 0.67 | 1.00 | 0.00 | 0.00 | 1.00 | 0.50 | 0.67 | 1.00 | 0.67 | 1.00 | 2.00 | 1.67 | 1.67 | 1.25 | 0.33 | 0.75 | 0.80 | 0.60 | 0.33 | 2.00 | 0.75 | 1.00 | 0.67 | 0.33 | 0.00 | 0.00 | 0.75 | 0.33 | 0.84 | 22.00 |
| E | 0.50 | 0.75 | 1.00 | 0.67 | 0.50 | 0.33 | 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 | 0.12 | 3.19 |
| 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 | 0.00 | 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 |
| G | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.67 | 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 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 1.44 |
| 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 | 0.00 | 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 |
| I | 0.00 | 0.50 | 0.67 | 0.67 | 1.00 | 0.67 | 1.50 | 0.50 | 2.00 | 1.33 | 1.00 | 1.33 | 1.50 | 0.00 | 0.33 | 0.33 | 0.00 | 0.67 | 0.75 | 2.00 | 2.00 | 0.33 | 0.20 | 3.00 | 1.67 | 1.67 | 3.00 | 3.75 | 2.67 | 2.75 | 2.33 | 1.29 | 34.08 |
| x | 1.50 | 0.50 | 0.00 | 0.67 | 0.00 | 0.67 | 0.00 | 0.50 | 0.00 | 0.33 | 0.50 | 0.33 | 0.25 | 0.33 | 0.00 | 0.00 | 0.25 | 0.33 | 1.00 | 0.20 | 0.40 | 2.00 | 0.20 | 0.75 | 1.00 | 1.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.67 | 0.44 | 11.65 |
| r | 1.00 | 0.25 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.00 | 0.25 | 0.00 | 0.25 | 0.00 | 0.00 | 1.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.17 | 4.46 |
| s | 0.50 | 0.75 | 2.00 | 2.00 | 2.00 | 2.33 | 2.00 | 2.00 | 2.00 | 1.00 | 1.50 | 1.00 | 1.00 | 1.00 | 0.00 | 1.00 | 1.25 | 1.00 | 1.50 | 1.40 | 2.00 | 0.33 | 1.00 | 2.75 | 2.00 | 1.67 | 3.00 | 2.50 | 1.67 | 3.25 | 1.00 | 1.56 | 41.12 |
| a | 0.50 | 1.25 | 1.00 | 0.67 | 1.50 | 0.33 | 0.00 | 0.50 | 1.00 | 0.67 | 2.00 | 1.67 | 1.75 | 0.67 | 2.00 | 2.00 | 1.00 | 0.33 | 0.25 | 1.60 | 1.20 | 1.00 | 1.80 | 1.50 | 1.67 | 2.33 | 2.00 | 2.00 | 2.33 | 1.50 | 2.67 | 1.31 | 34.56 |
| h | 0.00 | 0.25 | 0.00 | 0.00 | 0.50 | 0.33 | 0.00 | 0.00 | 0.00 | 1.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.67 | 0.00 | 0.00 | 0.67 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.18 | 4.81 |
| k | 0.50 | 0.50 | 0.67 | 0.67 | 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 | 0.33 | 0.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.13 | 3.40 |
| x | 0.50 | 0.75 | 0.67 | 1.33 | 1.00 | 1.00 | 1.50 | 1.00 | 2.00 | 1.33 | 1.50 | 1.67 | 1.75 | 0.33 | 0.33 | 0.33 | 0.25 | 0.67 | 1.75 | 2.20 | 2.40 | 0.67 | 0.20 | 3.75 | 2.67 | 2.33 | 3.33 | 3.75 | 2.67 | 2.75 | 3.00 | 1.59 | 41.95 |
| o | 2.50 | 1.50 | 1.67 | 1.67 | 1.50 | 2.33 | 0.50 | 2.00 | 1.00 | 2.33 | 2.50 | 0.33 | 0.75 | 3.00 | 1.67 | 2.67 | 2.00 | 1.67 | 1.25 | 0.40 | 0.80 | 2.00 | 1.80 | 0.50 | 1.67 | 3.33 | 2.00 | 1.25 | 1.67 | 2.00 | 1.33 | 1.66 | 43.82 |
| i | 1.00 | 0.50 | 0.67 | 0.33 | 1.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 1.00 | 0.50 | 0.00 | 1.00 | 0.00 | 0.50 | 0.33 | 1.00 | 0.60 | 0.40 | 1.67 | 1.00 | 0.75 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.45 | 11.75 |
| c | 0.00 | 0.75 | 1.00 | 0.67 | 0.50 | 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 | 0.09 | 2.48 |
| CV | 58.50 | 75.25 | 98.67 | 75.00 | 82.50 | 55.33 | 20.50 | 38.50 | 35.00 | 77.33 | 44.50 | 33.00 | 36.50 | 81.33 | 63.67 | 51.00 | 39.50 | 57.67 | 65.00 | 36.60 | 41.60 | 26.33 | 52.40 | 50.75 | 48.67 | 72.33 | 51.00 | 42.25 | 48.00 | 65.00 | 34.33 | 53.48 | 100 |
| CVn | 7.50 | 12.25 | 30.33 | 13.67 | 10.00 | 10.33 | 10.00 | 10.50 | 13.50 | 50.00 | 26.00 | 23.67 | 19.25 | 31.00 | 30.00 | 12.67 | 16.50 | 30.67 | 16.75 | 9.00 | 11.40 | 10.33 | 40.60 | 31.75 | 33.67 | 56.67 | 27.67 | 27.25 | 36.00 | 34.75 | 19.33 | 23.00 | 43.00 |
| CVs | 51.00 | 63.00 | 68.33 | 61.33 | 72.50 | 45.00 | 10.50 | 28.00 | 21.50 | 27.33 | 18.50 | 9.33 | 17.25 | 50.33 | 33.67 | 38.33 | 23.00 | 27.00 | 48.25 | 27.60 | 30.20 | 16.00 | 11.80 | 19.00 | 15.00 | 15.67 | 23.33 | 15.00 | 12.00 | 30.25 | 15.00 | 30.48 | 57.00 |
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