Statistics of sunspot activity
November, 1990
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 | 90.20 | 108.20 | 153.00 | 170.71 | 208.83 | 252.80 | 250.00 | 268.86 | 259.43 | 224.86 | 217.00 | 185.17 | 148.25 | 125.00 | 132.80 | 92.33 | 98.60 | 107.17 | 124.29 | 89.40 | 97.43 | 105.33 | 143.00 | 148.57 | 127.71 | 129.20 | 141.80 | 187.40 | 220.40 | 199.00 | 160.22 | 100 |
| Wn | 17.60 | 23.60 | 46.00 | 56.57 | 74.17 | 103.40 | 112.80 | 138.29 | 137.71 | 114.29 | 110.00 | 93.83 | 78.25 | 71.83 | 80.20 | 55.00 | 60.60 | 72.00 | 83.86 | 55.80 | 54.57 | 51.17 | 56.60 | 54.14 | 35.00 | 32.00 | 41.00 | 47.80 | 78.60 | 65.40 | 70.07 | 43.73 |
| Ws | 72.60 | 84.60 | 107.00 | 114.14 | 134.67 | 149.40 | 137.20 | 130.57 | 121.71 | 110.57 | 107.00 | 91.33 | 70.00 | 53.17 | 52.60 | 37.33 | 38.00 | 35.17 | 40.43 | 33.60 | 42.86 | 54.17 | 86.40 | 94.43 | 92.71 | 97.20 | 100.80 | 139.60 | 141.80 | 133.60 | 90.16 | 56.27 |
| n | 5.40 | 5.80 | 8.67 | 9.00 | 13.17 | 15.00 | 13.60 | 13.43 | 12.00 | 11.86 | 10.83 | 9.33 | 7.25 | 5.50 | 6.00 | 4.67 | 5.40 | 5.17 | 4.71 | 3.60 | 4.00 | 5.33 | 6.20 | 6.43 | 6.71 | 7.60 | 8.80 | 11.80 | 13.60 | 13.60 | 8.48 | 100 |
| A | 1.40 | 1.60 | 1.83 | 1.57 | 3.17 | 2.20 | 1.40 | 2.00 | 1.86 | 3.43 | 1.50 | 1.50 | 1.00 | 0.50 | 1.00 | 0.00 | 0.20 | 0.83 | 0.57 | 0.20 | 0.57 | 0.33 | 0.20 | 1.43 | 0.43 | 0.40 | 1.20 | 1.60 | 2.20 | 1.60 | 1.26 | 14.83 |
| B | 0.20 | 0.20 | 1.67 | 2.43 | 3.50 | 2.40 | 0.20 | 0.43 | 1.00 | 1.14 | 2.67 | 3.17 | 1.75 | 0.33 | 0.20 | 0.33 | 0.80 | 0.33 | 0.71 | 0.60 | 0.43 | 0.50 | 1.60 | 0.71 | 0.14 | 0.00 | 0.20 | 1.40 | 3.00 | 3.20 | 1.18 | 13.85 |
| C | 0.20 | 1.00 | 1.50 | 1.14 | 3.17 | 3.40 | 3.40 | 1.71 | 2.14 | 1.43 | 1.83 | 1.17 | 1.00 | 1.67 | 2.40 | 1.17 | 1.20 | 0.83 | 1.29 | 1.00 | 0.71 | 1.83 | 0.80 | 0.71 | 1.00 | 0.80 | 1.20 | 3.80 | 4.00 | 2.20 | 1.66 | 19.54 |
| D | 2.60 | 2.00 | 2.67 | 2.71 | 1.83 | 3.60 | 5.80 | 4.71 | 2.86 | 2.43 | 1.83 | 0.83 | 1.50 | 0.67 | 0.60 | 1.33 | 0.80 | 0.17 | 0.29 | 0.40 | 0.57 | 0.83 | 1.20 | 1.43 | 1.14 | 2.40 | 2.80 | 1.40 | 1.00 | 2.80 | 1.84 | 21.70 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.20 | 0.29 | 0.29 | 0.29 | 0.50 | 0.33 | 0.50 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.43 | 0.80 | 0.60 | 0.00 | 0.20 | 0.00 | 0.18 | 2.08 |
| F | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.60 | 0.50 | 0.60 | 1.00 | 0.86 | 1.00 | 0.86 | 0.50 | 0.80 | 1.00 | 0.86 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.31 | 3.70 |
| G | 0.40 | 0.60 | 0.00 | 0.29 | 0.67 | 0.80 | 1.40 | 2.43 | 3.00 | 2.57 | 1.50 | 1.83 | 1.50 | 1.67 | 1.20 | 0.50 | 0.40 | 0.00 | 0.00 | 0.00 | 0.14 | 0.33 | 0.20 | 0.00 | 0.57 | 0.40 | 0.60 | 1.20 | 0.80 | 0.40 | 0.85 | 9.98 |
| H | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 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 | 0.02 | 0.20 |
| I | 0.60 | 0.40 | 1.00 | 0.71 | 0.83 | 2.20 | 1.20 | 1.71 | 0.86 | 0.57 | 1.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.67 | 1.40 | 2.00 | 0.86 | 0.40 | 0.71 | 0.83 | 1.40 | 1.14 | 2.14 | 2.40 | 2.20 | 2.40 | 2.40 | 3.40 | 1.20 | 14.13 |
| x | 1.60 | 1.80 | 3.50 | 4.00 | 6.67 | 4.60 | 1.60 | 2.43 | 2.86 | 4.57 | 4.17 | 4.67 | 2.75 | 0.83 | 1.20 | 0.33 | 1.00 | 1.17 | 1.29 | 0.80 | 1.00 | 0.83 | 1.80 | 2.14 | 0.57 | 0.40 | 1.40 | 3.00 | 5.20 | 4.80 | 2.43 | 28.68 |
| r | 0.20 | 0.40 | 1.00 | 0.14 | 0.33 | 1.40 | 0.60 | 0.43 | 0.14 | 0.14 | 1.33 | 0.33 | 0.25 | 0.17 | 0.60 | 0.00 | 0.00 | 0.00 | 0.29 | 0.20 | 0.00 | 0.17 | 0.20 | 0.00 | 0.14 | 0.40 | 0.40 | 0.80 | 1.00 | 0.00 | 0.37 | 4.35 |
| s | 1.60 | 1.20 | 0.67 | 1.00 | 2.00 | 2.80 | 3.20 | 2.29 | 2.14 | 0.86 | 1.33 | 1.17 | 1.00 | 0.17 | 0.60 | 0.50 | 0.60 | 1.00 | 0.86 | 0.80 | 0.86 | 2.00 | 1.20 | 0.71 | 3.00 | 3.00 | 3.60 | 4.40 | 4.40 | 5.80 | 1.82 | 21.52 |
| a | 0.80 | 1.40 | 2.83 | 2.57 | 3.33 | 4.40 | 6.00 | 6.57 | 4.71 | 4.86 | 2.00 | 1.50 | 1.25 | 2.17 | 1.60 | 2.67 | 2.80 | 2.00 | 1.29 | 0.80 | 1.14 | 1.33 | 2.00 | 2.57 | 1.86 | 2.80 | 3.00 | 3.40 | 3.00 | 2.80 | 2.65 | 31.22 |
| h | 0.20 | 0.00 | 0.17 | 0.29 | 0.50 | 0.60 | 0.80 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.25 | 0.50 | 0.40 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.34 | 3.96 |
| k | 1.00 | 1.00 | 0.50 | 1.00 | 0.33 | 1.20 | 1.40 | 0.71 | 1.14 | 0.43 | 1.00 | 0.67 | 0.75 | 1.67 | 1.60 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.14 | 1.00 | 0.40 | 0.20 | 0.00 | 0.00 | 0.87 | 10.27 |
| x | 2.00 | 2.00 | 2.83 | 2.43 | 4.00 | 4.40 | 2.60 | 3.71 | 2.71 | 4.00 | 2.50 | 2.00 | 1.00 | 0.50 | 1.00 | 0.83 | 1.60 | 2.83 | 1.43 | 0.60 | 1.29 | 1.17 | 1.60 | 2.57 | 2.57 | 3.00 | 3.40 | 4.00 | 4.60 | 5.00 | 2.47 | 29.15 |
| o | 3.20 | 3.60 | 5.33 | 5.29 | 8.50 | 8.80 | 9.20 | 9.00 | 9.00 | 7.57 | 7.50 | 6.83 | 5.50 | 4.33 | 4.40 | 3.00 | 3.00 | 1.33 | 2.00 | 1.80 | 1.71 | 3.33 | 3.60 | 2.29 | 2.86 | 3.20 | 4.80 | 7.80 | 8.80 | 8.60 | 5.21 | 61.38 |
| i | 0.20 | 0.20 | 0.50 | 1.29 | 0.67 | 1.80 | 1.80 | 0.71 | 0.29 | 0.29 | 0.83 | 0.50 | 0.75 | 0.50 | 0.40 | 0.67 | 0.80 | 1.00 | 1.14 | 1.20 | 0.86 | 0.83 | 1.00 | 1.57 | 1.29 | 1.40 | 0.60 | 0.00 | 0.20 | 0.00 | 0.78 | 9.15 |
| 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 | 0.17 | 0.20 | 0.17 | 0.00 | 0.00 | 0.14 | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.32 |
| CV | 102.80 | 91.00 | 92.33 | 119.71 | 123.50 | 201.60 | 255.60 | 234.14 | 214.57 | 170.00 | 159.50 | 131.00 | 144.50 | 135.83 | 128.80 | 97.83 | 85.60 | 76.33 | 75.57 | 70.40 | 75.00 | 92.50 | 94.00 | 96.43 | 126.43 | 141.00 | 128.40 | 119.60 | 107.40 | 139.40 | 127.69 | 100 |
| CVn | 7.80 | 9.60 | 15.33 | 35.29 | 51.33 | 91.80 | 142.20 | 131.00 | 129.71 | 107.43 | 92.17 | 78.83 | 114.25 | 103.00 | 101.80 | 76.00 | 61.00 | 53.83 | 50.71 | 49.00 | 49.43 | 51.33 | 48.20 | 48.14 | 47.57 | 55.00 | 39.00 | 28.20 | 33.60 | 44.40 | 64.90 | 50.82 |
| CVs | 95.00 | 81.40 | 77.00 | 84.43 | 72.17 | 109.80 | 113.40 | 103.14 | 84.86 | 62.57 | 67.33 | 52.17 | 30.25 | 32.83 | 27.00 | 21.83 | 24.60 | 22.50 | 24.86 | 21.40 | 25.57 | 41.17 | 45.80 | 48.29 | 78.86 | 86.00 | 89.40 | 91.40 | 73.80 | 95.00 | 62.79 | 49.18 |
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