Statistics of sunspot activity
May, 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 | 31 | Average | % |
| W | 20.60 | 32.67 | 38.80 | 57.50 | 49.50 | 30.60 | 19.25 | 20.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 12.00 | 15.40 | 20.25 | 22.50 | 17.20 | 22.60 | 14.67 | 13.75 | 17.17 | 28.50 | 27.60 | 20.67 | 16.17 | 100 |
| Wn | 16.20 | 21.33 | 22.40 | 29.75 | 46.75 | 23.00 | 13.50 | 11.75 | 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 | 2.20 | 3.67 | 2.75 | 5.50 | 18.83 | 15.60 | 12.00 | 7.91 | 48.93 |
| Ws | 4.40 | 11.33 | 16.40 | 27.75 | 2.75 | 7.60 | 5.75 | 8.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 12.00 | 15.40 | 20.25 | 22.50 | 17.20 | 20.40 | 11.00 | 11.00 | 11.67 | 9.67 | 12.00 | 8.67 | 8.26 | 51.07 |
| n | 1.80 | 2.67 | 3.00 | 4.25 | 3.75 | 2.00 | 1.50 | 1.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.80 | 1.33 | 1.25 | 1.50 | 2.17 | 2.20 | 1.67 | 1.21 | 100 |
| A | 1.20 | 1.67 | 0.40 | 0.75 | 0.75 | 0.20 | 0.50 | 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 | 0.60 | 0.33 | 0.25 | 0.83 | 0.33 | 1.00 | 1.00 | 0.33 | 27.41 |
| B | 0.00 | 1.00 | 1.00 | 1.25 | 2.00 | 0.60 | 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 | 0.50 | 0.40 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 1.00 | 1.20 | 0.67 | 0.32 | 26.75 |
| C | 0.20 | 0.00 | 1.20 | 0.50 | 0.25 | 0.40 | 0.25 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.60 | 0.25 | 0.00 | 1.00 | 0.60 | 0.00 | 0.00 | 0.17 | 0.50 | 0.00 | 0.00 | 0.22 | 18.38 |
| D | 0.00 | 0.00 | 0.20 | 1.25 | 0.75 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.13 | 10.94 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 2.26 |
| 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 | 0.00 | 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 | 0.00 | 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 | 0.00 | 0.00 | 0.01 | 0.53 |
| I | 0.40 | 0.00 | 0.20 | 0.50 | 0.00 | 0.20 | 0.00 | 0.75 | 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 | 0.20 | 1.00 | 1.00 | 0.50 | 0.17 | 0.00 | 0.00 | 0.17 | 13.73 |
| x | 1.20 | 2.67 | 1.40 | 2.00 | 2.75 | 0.80 | 0.75 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.40 | 0.00 | 0.00 | 0.00 | 0.80 | 0.33 | 0.25 | 0.83 | 1.33 | 2.20 | 1.67 | 0.66 | 54.16 |
| r | 0.60 | 0.00 | 0.40 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.07 | 5.62 |
| s | 0.00 | 0.00 | 0.60 | 0.50 | 0.00 | 0.80 | 0.50 | 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 | 0.20 | 0.25 | 0.75 | 0.40 | 0.60 | 0.83 | 0.75 | 0.17 | 0.50 | 0.00 | 0.00 | 0.24 | 19.53 |
| a | 0.00 | 0.00 | 0.60 | 1.75 | 0.75 | 0.40 | 0.25 | 0.75 | 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 | 0.75 | 0.25 | 0.60 | 0.20 | 0.17 | 0.25 | 0.33 | 0.33 | 0.00 | 0.00 | 0.24 | 20.15 |
| 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 |
| 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 | 0.00 | 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 | 0.00 | 0.00 | 0.01 | 0.53 |
| x | 1.60 | 1.67 | 0.60 | 1.25 | 0.75 | 0.40 | 0.50 | 1.25 | 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 | 0.25 | 0.00 | 0.00 | 1.00 | 1.33 | 1.25 | 1.33 | 0.50 | 1.00 | 1.00 | 0.51 | 41.67 |
| o | 0.20 | 1.00 | 2.40 | 2.50 | 2.00 | 0.80 | 0.75 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.80 | 0.25 | 0.50 | 0.60 | 0.60 | 0.00 | 0.00 | 0.17 | 1.50 | 1.20 | 0.67 | 0.56 | 46.32 |
| i | 0.00 | 0.00 | 0.00 | 0.50 | 0.75 | 0.60 | 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 | 0.50 | 0.50 | 0.40 | 0.20 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.12 | 10.14 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.20 | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 1.86 |
| CV | 3.80 | 3.67 | 17.80 | 38.25 | 25.00 | 24.80 | 17.25 | 11.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.50 | 5.80 | 15.50 | 25.00 | 9.60 | 16.60 | 9.83 | 9.50 | 5.67 | 12.83 | 3.40 | 2.33 | 8.43 | 100 |
| CVn | 3.40 | 2.33 | 12.20 | 21.75 | 24.75 | 22.00 | 16.75 | 9.00 | 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 | 0.33 | 0.25 | 0.50 | 8.83 | 1.80 | 1.33 | 4.05 | 47.99 |
| CVs | 0.40 | 1.33 | 5.60 | 16.50 | 0.25 | 2.80 | 0.50 | 2.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.50 | 5.80 | 15.50 | 25.00 | 9.60 | 16.40 | 9.50 | 9.25 | 5.17 | 4.00 | 1.60 | 1.00 | 4.39 | 52.01 |
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