Statistics of sunspot activity
December, 2011
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 | 100.67 | 78.80 | 128.33 | 157.67 | 107.67 | 129.75 | 130.00 | 130.75 | 103.50 | 90.75 | 93.00 | 65.33 | 69.33 | 67.00 | 52.67 | 63.00 | 77.33 | 82.50 | 105.67 | 107.00 | 94.67 | 105.00 | 118.50 | 81.00 | 83.00 | 93.00 | 95.00 | 86.50 | 100.00 | 85.67 | 65.00 | 95.10 | 100 |
| Wn | 78.00 | 56.80 | 95.00 | 103.33 | 63.33 | 69.00 | 73.67 | 73.75 | 65.50 | 58.00 | 56.50 | 48.33 | 41.33 | 52.33 | 34.00 | 29.50 | 37.00 | 38.50 | 36.00 | 46.50 | 52.67 | 61.00 | 50.50 | 36.00 | 29.50 | 30.50 | 24.75 | 21.75 | 35.25 | 29.00 | 18.75 | 49.87 | 52.44 |
| Ws | 22.67 | 22.00 | 33.33 | 54.33 | 44.33 | 60.75 | 56.33 | 57.00 | 38.00 | 32.75 | 36.50 | 17.00 | 28.00 | 14.67 | 18.67 | 33.50 | 40.33 | 44.00 | 69.67 | 60.50 | 42.00 | 44.00 | 68.00 | 45.00 | 53.50 | 62.50 | 70.25 | 64.75 | 64.75 | 56.67 | 46.25 | 45.23 | 47.56 |
| n | 6.33 | 4.60 | 7.00 | 8.33 | 6.33 | 8.50 | 9.33 | 10.00 | 7.75 | 6.50 | 6.50 | 4.67 | 5.33 | 5.00 | 3.67 | 4.25 | 5.67 | 6.50 | 7.67 | 7.50 | 4.67 | 5.00 | 6.50 | 5.67 | 5.50 | 5.75 | 6.25 | 5.50 | 6.75 | 5.33 | 4.50 | 6.22 | 100 |
| A | 0.00 | 0.00 | 0.33 | 1.00 | 0.67 | 0.50 | 1.33 | 1.50 | 0.50 | 0.25 | 0.50 | 0.67 | 0.67 | 0.00 | 0.67 | 0.00 | 0.67 | 0.50 | 1.00 | 0.50 | 1.00 | 0.50 | 0.50 | 0.67 | 0.50 | 0.50 | 1.25 | 0.25 | 0.50 | 0.00 | 0.00 | 0.55 | 8.77 |
| B | 0.00 | 0.20 | 0.00 | 0.33 | 1.33 | 2.50 | 2.33 | 0.75 | 1.50 | 0.25 | 1.00 | 1.00 | 1.00 | 1.67 | 0.33 | 0.50 | 1.33 | 0.00 | 2.00 | 0.50 | 0.00 | 0.00 | 0.00 | 1.00 | 0.00 | 0.75 | 0.25 | 0.25 | 0.75 | 0.33 | 0.25 | 0.71 | 11.47 |
| C | 2.00 | 1.60 | 0.67 | 0.33 | 1.00 | 1.75 | 1.33 | 4.00 | 3.00 | 3.00 | 1.50 | 1.33 | 1.67 | 0.33 | 0.67 | 1.25 | 1.67 | 1.00 | 1.33 | 2.50 | 1.00 | 0.00 | 1.00 | 0.67 | 0.50 | 1.50 | 1.00 | 1.00 | 2.25 | 1.67 | 0.50 | 1.39 | 22.31 |
| D | 2.67 | 1.40 | 3.33 | 3.67 | 1.67 | 1.25 | 0.67 | 2.00 | 1.00 | 0.50 | 0.50 | 0.33 | 0.00 | 1.33 | 1.33 | 1.25 | 0.33 | 2.00 | 1.33 | 2.50 | 1.67 | 3.50 | 3.50 | 1.00 | 1.75 | 1.25 | 1.75 | 2.25 | 1.75 | 0.00 | 0.50 | 1.55 | 24.88 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.50 | 0.67 | 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 | 0.67 | 0.00 | 0.00 | 0.67 | 0.00 | 0.50 | 0.25 | 0.00 | 0.00 | 1.00 | 0.50 | 0.16 | 2.64 |
| 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 | 0.40 | 0.33 | 0.33 | 0.33 | 1.00 | 1.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.50 | 0.50 | 0.67 | 1.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.33 | 0.50 | 0.26 | 4.18 |
| H | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.75 | 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 | 0.25 | 0.00 | 0.00 | 0.00 | 0.67 | 0.50 | 0.11 | 1.81 |
| I | 1.67 | 1.00 | 2.33 | 2.67 | 1.00 | 1.00 | 1.67 | 1.50 | 1.50 | 1.75 | 2.50 | 1.00 | 2.00 | 1.67 | 0.67 | 1.25 | 1.67 | 3.00 | 1.67 | 1.50 | 0.33 | 0.50 | 1.00 | 1.00 | 1.75 | 1.00 | 1.75 | 1.50 | 1.25 | 1.33 | 1.75 | 1.49 | 23.94 |
| x | 0.00 | 0.20 | 0.33 | 1.33 | 2.00 | 3.00 | 3.67 | 2.25 | 2.00 | 0.50 | 1.50 | 1.67 | 1.67 | 1.67 | 1.00 | 0.50 | 2.00 | 0.50 | 3.00 | 1.00 | 1.00 | 0.50 | 0.50 | 1.67 | 0.50 | 1.25 | 1.50 | 0.50 | 1.25 | 0.33 | 0.25 | 1.26 | 20.24 |
| r | 0.33 | 0.00 | 0.33 | 0.67 | 0.33 | 0.00 | 1.00 | 1.00 | 0.50 | 0.00 | 0.00 | 0.00 | 1.00 | 0.00 | 0.00 | 0.00 | 0.67 | 3.00 | 1.00 | 0.50 | 0.00 | 0.50 | 1.00 | 0.00 | 0.75 | 0.25 | 0.00 | 0.25 | 0.25 | 0.00 | 0.00 | 0.43 | 6.91 |
| s | 5.00 | 3.80 | 3.67 | 4.33 | 2.67 | 3.75 | 2.33 | 4.00 | 4.50 | 3.75 | 3.50 | 2.33 | 1.67 | 2.33 | 1.67 | 3.25 | 2.33 | 3.00 | 3.33 | 3.50 | 1.67 | 0.00 | 3.50 | 2.00 | 2.00 | 2.00 | 1.75 | 1.75 | 2.25 | 2.33 | 2.25 | 2.78 | 44.71 |
| a | 1.00 | 0.60 | 2.67 | 1.33 | 0.67 | 0.75 | 1.33 | 1.75 | 0.00 | 0.75 | 1.00 | 0.00 | 1.00 | 1.00 | 0.67 | 0.25 | 0.67 | 0.00 | 0.33 | 2.50 | 0.67 | 4.00 | 0.50 | 0.67 | 1.25 | 0.50 | 1.50 | 2.00 | 2.00 | 0.67 | 0.75 | 1.06 | 16.99 |
| h | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.50 | 0.67 | 0.75 | 0.75 | 0.75 | 0.50 | 0.00 | 0.00 | 0.00 | 0.33 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.50 | 1.33 | 1.00 | 1.50 | 0.75 | 0.25 | 0.50 | 1.33 | 1.25 | 0.44 | 7.04 |
| k | 0.00 | 0.00 | 0.00 | 0.67 | 0.33 | 0.50 | 0.33 | 0.25 | 0.00 | 0.75 | 0.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.25 | 0.75 | 0.75 | 0.50 | 0.67 | 0.00 | 0.26 | 4.11 |
| x | 1.67 | 1.00 | 2.67 | 3.67 | 1.67 | 1.50 | 3.00 | 3.25 | 2.25 | 2.75 | 3.50 | 2.00 | 2.67 | 1.67 | 1.33 | 1.25 | 2.33 | 3.50 | 2.67 | 2.00 | 1.33 | 1.00 | 1.50 | 1.67 | 2.25 | 1.75 | 3.00 | 1.75 | 1.75 | 2.00 | 2.25 | 2.15 | 34.53 |
| o | 3.67 | 3.60 | 3.33 | 3.00 | 3.33 | 6.00 | 5.67 | 6.50 | 5.50 | 3.75 | 3.00 | 2.67 | 2.67 | 3.33 | 2.33 | 2.75 | 3.33 | 3.00 | 5.00 | 5.50 | 1.67 | 2.50 | 3.00 | 3.00 | 2.50 | 2.25 | 2.00 | 2.25 | 3.75 | 2.33 | 1.75 | 3.38 | 54.41 |
| i | 1.00 | 0.00 | 0.33 | 1.00 | 0.67 | 0.75 | 0.67 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 1.50 | 2.00 | 0.67 | 0.75 | 1.50 | 1.25 | 1.50 | 1.25 | 0.33 | 0.00 | 0.53 | 8.47 |
| c | 0.00 | 0.00 | 0.67 | 0.67 | 0.67 | 0.25 | 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 | 1.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.67 | 0.50 | 0.16 | 2.59 |
| CV | 101.33 | 69.80 | 118.00 | 144.33 | 99.33 | 128.25 | 117.00 | 128.25 | 97.00 | 111.00 | 73.50 | 57.00 | 32.00 | 52.00 | 54.67 | 65.50 | 40.67 | 67.50 | 70.33 | 90.00 | 112.33 | 83.50 | 137.00 | 113.00 | 109.50 | 122.50 | 114.50 | 110.00 | 109.25 | 131.67 | 102.25 | 95.58 | 100 |
| CVn | 75.00 | 51.00 | 93.00 | 95.33 | 55.67 | 70.00 | 49.67 | 53.50 | 46.25 | 53.00 | 31.50 | 23.67 | 21.00 | 29.00 | 27.33 | 31.50 | 25.33 | 34.00 | 13.00 | 33.00 | 69.67 | 44.00 | 75.50 | 64.00 | 56.00 | 48.00 | 40.50 | 31.25 | 46.00 | 47.33 | 30.50 | 47.24 | 49.43 |
| CVs | 26.33 | 18.80 | 25.00 | 49.00 | 43.67 | 58.25 | 67.33 | 74.75 | 50.75 | 58.00 | 42.00 | 33.33 | 11.00 | 23.00 | 27.33 | 34.00 | 15.33 | 33.50 | 57.33 | 57.00 | 42.67 | 39.50 | 61.50 | 49.00 | 53.50 | 74.50 | 74.00 | 78.75 | 63.25 | 84.33 | 71.75 | 48.34 | 50.57 |
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