Statistics of sunspot activity
February, 1985
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 | Average | % |
| W | 31.80 | 33.00 | 29.20 | 28.25 | 24.17 | 18.14 | 11.00 | 26.00 | 31.40 | 26.80 | 17.57 | 14.25 | 13.50 | 18.60 | 15.00 | 12.83 | 11.00 | 11.00 | 26.50 | 36.40 | 33.60 | 32.83 | 26.25 | 14.20 | 16.60 | 14.50 | 11.60 | 11.00 | 21.32 | 100 |
| Wn | 18.00 | 18.63 | 15.60 | 15.25 | 12.33 | 11.43 | 11.00 | 14.75 | 21.60 | 14.40 | 5.29 | 0.00 | 0.00 | 2.40 | 0.00 | 0.00 | 0.00 | 11.00 | 10.25 | 20.20 | 20.40 | 21.50 | 23.50 | 14.20 | 16.60 | 14.50 | 11.60 | 11.00 | 11.98 | 56.18 |
| Ws | 13.80 | 14.38 | 13.60 | 13.00 | 11.83 | 6.71 | 0.00 | 11.25 | 9.80 | 12.40 | 12.29 | 14.25 | 13.50 | 16.20 | 15.00 | 12.83 | 11.00 | 0.00 | 16.25 | 16.20 | 13.20 | 11.33 | 2.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 9.34 | 43.82 |
| n | 2.00 | 2.13 | 2.00 | 2.00 | 2.00 | 1.57 | 1.00 | 2.25 | 2.40 | 2.20 | 1.43 | 1.00 | 1.00 | 1.40 | 1.00 | 1.00 | 1.00 | 1.00 | 1.75 | 2.00 | 2.00 | 2.00 | 1.25 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.51 | 100 |
| A | 0.40 | 0.38 | 0.00 | 0.50 | 0.67 | 0.86 | 1.00 | 0.75 | 1.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.60 | 0.00 | 0.33 | 1.00 | 1.00 | 0.00 | 0.00 | 0.20 | 0.67 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.35 | 23.12 |
| B | 0.60 | 0.75 | 0.40 | 0.25 | 0.33 | 0.14 | 0.00 | 0.75 | 0.00 | 0.20 | 0.43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.25 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 | 10.55 |
| C | 0.80 | 0.00 | 0.60 | 0.00 | 0.17 | 0.29 | 0.00 | 0.00 | 0.60 | 0.60 | 0.29 | 0.50 | 1.00 | 0.80 | 0.83 | 0.33 | 0.00 | 0.00 | 1.25 | 1.00 | 0.60 | 0.33 | 1.00 | 0.80 | 1.00 | 1.00 | 0.20 | 0.00 | 0.50 | 33.01 |
| D | 0.00 | 1.00 | 1.00 | 1.25 | 0.83 | 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 | 1.00 | 0.80 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.24 | 15.54 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.87 |
| 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 |
| 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 |
| 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 |
| I | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 0.00 | 0.75 | 0.60 | 1.20 | 0.71 | 0.50 | 0.00 | 0.00 | 0.17 | 0.17 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.33 | 0.00 | 0.20 | 0.00 | 0.00 | 0.80 | 1.00 | 0.26 | 16.91 |
| x | 1.00 | 1.13 | 0.40 | 0.75 | 1.00 | 1.00 | 1.00 | 1.50 | 1.00 | 0.40 | 0.43 | 0.00 | 0.00 | 0.60 | 0.00 | 0.50 | 1.00 | 1.00 | 0.25 | 0.00 | 0.40 | 0.67 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.51 | 33.68 |
| r | 0.20 | 0.00 | 0.20 | 0.00 | 0.17 | 0.14 | 0.00 | 0.25 | 0.20 | 0.40 | 0.00 | 0.00 | 0.00 | 0.20 | 0.50 | 0.17 | 0.00 | 0.00 | 0.25 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 | 7.26 |
| s | 0.60 | 0.50 | 0.80 | 0.75 | 0.67 | 0.14 | 0.00 | 0.25 | 0.40 | 1.00 | 0.43 | 0.75 | 0.50 | 0.40 | 0.17 | 0.33 | 0.00 | 0.00 | 0.25 | 0.60 | 0.80 | 1.00 | 0.50 | 0.80 | 0.80 | 0.83 | 0.60 | 0.80 | 0.52 | 34.62 |
| a | 0.20 | 0.50 | 0.60 | 0.50 | 0.17 | 0.29 | 0.00 | 0.25 | 0.80 | 0.40 | 0.57 | 0.25 | 0.50 | 0.20 | 0.33 | 0.00 | 0.00 | 0.00 | 1.00 | 0.40 | 0.20 | 0.17 | 0.25 | 0.20 | 0.20 | 0.17 | 0.40 | 0.20 | 0.31 | 20.63 |
| 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 | 0.40 | 0.20 | 0.17 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 2.40 |
| 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 | 0.20 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 1.42 |
| x | 0.60 | 0.38 | 0.00 | 0.50 | 0.67 | 1.14 | 1.00 | 1.50 | 1.60 | 1.40 | 0.71 | 0.50 | 0.00 | 0.60 | 0.17 | 0.50 | 1.00 | 1.00 | 0.25 | 0.00 | 0.20 | 1.00 | 0.25 | 0.20 | 0.00 | 0.00 | 0.80 | 1.00 | 0.61 | 40.04 |
| o | 1.40 | 1.75 | 2.00 | 1.50 | 1.33 | 0.43 | 0.00 | 0.75 | 0.80 | 0.80 | 0.71 | 0.50 | 1.00 | 0.80 | 0.83 | 0.50 | 0.00 | 0.00 | 1.50 | 2.00 | 1.40 | 0.50 | 1.00 | 0.80 | 1.00 | 1.00 | 0.20 | 0.00 | 0.88 | 57.84 |
| i | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 2.12 |
| 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 |
| CV | 10.60 | 23.88 | 28.20 | 29.25 | 22.00 | 5.43 | 1.00 | 7.50 | 14.40 | 15.60 | 9.43 | 9.75 | 9.50 | 7.60 | 6.83 | 5.00 | 1.00 | 1.00 | 12.25 | 45.00 | 45.00 | 28.33 | 18.00 | 10.20 | 10.40 | 10.50 | 9.00 | 9.40 | 14.50 | 100 |
| CVn | 7.20 | 22.00 | 22.60 | 22.00 | 20.67 | 4.71 | 1.00 | 2.00 | 9.40 | 7.60 | 0.86 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 1.00 | 5.75 | 37.00 | 38.40 | 24.33 | 17.75 | 10.20 | 10.40 | 10.50 | 9.00 | 9.40 | 10.50 | 72.40 |
| CVs | 3.40 | 1.88 | 5.60 | 7.25 | 1.33 | 0.71 | 0.00 | 5.50 | 5.00 | 8.00 | 8.57 | 9.75 | 9.50 | 7.40 | 6.83 | 5.00 | 1.00 | 0.00 | 6.50 | 8.00 | 6.60 | 4.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.00 | 27.60 |
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