Statistics of sunspot activity
October, 1989
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 | 174.33 | 171.29 | 184.60 | 240.67 | 231.43 | 236.14 | 234.00 | 232.17 | 254.80 | 230.17 | 235.14 | 185.57 | 169.00 | 211.75 | 233.80 | 234.67 | 241.50 | 168.25 | 198.40 | 171.40 | 213.29 | 172.83 | 166.50 | 166.00 | 128.25 | 112.75 | 115.17 | 147.29 | 166.83 | 174.60 | 172.17 | 192.73 | 100 |
| Wn | 79.00 | 77.57 | 89.00 | 127.83 | 139.29 | 157.57 | 160.00 | 155.67 | 181.40 | 159.00 | 155.43 | 132.86 | 112.00 | 124.50 | 115.00 | 91.33 | 92.75 | 53.75 | 36.00 | 20.80 | 25.00 | 25.17 | 33.17 | 34.00 | 39.00 | 57.50 | 59.83 | 75.71 | 104.00 | 119.00 | 96.83 | 94.51 | 49.04 |
| Ws | 95.33 | 93.71 | 95.60 | 112.83 | 92.14 | 78.57 | 74.00 | 76.50 | 73.40 | 71.17 | 79.71 | 52.71 | 57.00 | 87.25 | 118.80 | 143.33 | 148.75 | 114.50 | 162.40 | 150.60 | 188.29 | 147.67 | 133.33 | 132.00 | 89.25 | 55.25 | 55.33 | 71.57 | 62.83 | 55.60 | 75.33 | 98.22 | 50.96 |
| n | 8.50 | 9.29 | 10.20 | 13.67 | 14.86 | 14.00 | 12.67 | 13.33 | 14.40 | 14.83 | 15.57 | 12.14 | 9.13 | 10.00 | 11.40 | 11.67 | 13.00 | 8.50 | 8.80 | 8.80 | 9.43 | 9.67 | 8.50 | 7.83 | 6.50 | 7.00 | 7.67 | 10.14 | 10.67 | 10.60 | 10.33 | 10.74 | 100 |
| A | 1.50 | 0.29 | 0.40 | 1.33 | 1.43 | 2.14 | 1.67 | 1.00 | 2.00 | 3.17 | 3.00 | 2.29 | 1.88 | 0.50 | 0.00 | 0.67 | 0.25 | 0.25 | 0.60 | 1.00 | 2.14 | 2.50 | 1.17 | 2.00 | 1.50 | 1.50 | 1.50 | 2.00 | 1.83 | 1.40 | 0.33 | 1.39 | 12.98 |
| B | 1.33 | 0.86 | 0.60 | 1.67 | 1.71 | 2.14 | 1.33 | 2.00 | 2.60 | 3.17 | 3.86 | 4.00 | 0.75 | 2.75 | 3.00 | 1.00 | 2.25 | 1.00 | 0.20 | 1.20 | 1.57 | 2.50 | 2.50 | 0.50 | 0.25 | 1.25 | 2.83 | 2.14 | 1.00 | 1.80 | 1.67 | 1.79 | 16.64 |
| C | 1.17 | 3.43 | 5.00 | 4.17 | 3.57 | 4.29 | 4.00 | 4.00 | 5.60 | 5.50 | 2.71 | 2.14 | 2.38 | 1.00 | 1.60 | 2.00 | 4.75 | 2.75 | 2.40 | 2.20 | 1.57 | 1.17 | 1.33 | 0.33 | 0.25 | 1.50 | 1.50 | 2.29 | 1.83 | 1.20 | 2.50 | 2.58 | 24.06 |
| D | 2.50 | 2.57 | 0.60 | 1.00 | 2.29 | 2.57 | 2.50 | 2.67 | 1.00 | 0.83 | 1.86 | 1.43 | 0.88 | 3.25 | 4.40 | 6.00 | 2.75 | 2.50 | 2.20 | 1.20 | 1.00 | 1.67 | 2.17 | 3.33 | 2.75 | 2.00 | 1.33 | 2.00 | 3.83 | 2.60 | 2.67 | 2.27 | 21.12 |
| E | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 0.57 | 0.38 | 0.50 | 0.00 | 0.33 | 0.25 | 0.25 | 0.40 | 1.00 | 1.29 | 1.00 | 0.83 | 1.50 | 1.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 0.33 | 0.36 | 3.36 |
| F | 0.50 | 0.14 | 0.40 | 0.83 | 0.71 | 0.71 | 1.00 | 1.00 | 0.60 | 0.50 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.22 | 2.07 |
| G | 1.33 | 1.00 | 1.20 | 0.67 | 1.00 | 0.43 | 0.00 | 0.00 | 0.20 | 0.17 | 0.43 | 0.14 | 1.13 | 0.75 | 1.40 | 1.00 | 1.50 | 0.25 | 0.80 | 0.20 | 1.00 | 0.33 | 0.17 | 0.17 | 0.00 | 0.25 | 0.00 | 0.14 | 0.17 | 0.40 | 0.00 | 0.52 | 4.87 |
| H | 0.00 | 0.14 | 0.20 | 0.17 | 0.71 | 0.29 | 0.33 | 0.50 | 0.20 | 0.17 | 0.14 | 0.29 | 0.63 | 0.25 | 0.20 | 0.33 | 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 | 0.15 | 1.41 |
| I | 0.17 | 0.86 | 1.80 | 3.67 | 3.43 | 1.43 | 1.83 | 2.17 | 2.20 | 1.33 | 3.29 | 1.29 | 1.13 | 0.75 | 0.80 | 0.33 | 1.25 | 1.50 | 2.20 | 2.00 | 0.86 | 0.50 | 0.17 | 0.00 | 0.00 | 0.50 | 0.50 | 1.57 | 2.00 | 2.60 | 2.83 | 1.45 | 13.49 |
| x | 2.83 | 1.14 | 1.00 | 3.00 | 3.14 | 4.29 | 3.00 | 3.00 | 4.60 | 6.33 | 6.86 | 6.29 | 2.63 | 3.25 | 3.00 | 1.67 | 2.50 | 1.25 | 0.80 | 2.20 | 3.71 | 5.00 | 3.67 | 2.50 | 1.75 | 2.75 | 4.33 | 4.14 | 2.83 | 3.20 | 2.00 | 3.18 | 29.62 |
| r | 0.33 | 0.29 | 0.40 | 1.50 | 0.86 | 0.71 | 0.33 | 0.67 | 0.40 | 1.17 | 0.86 | 0.29 | 0.38 | 0.00 | 0.20 | 0.33 | 0.50 | 0.50 | 0.60 | 0.60 | 1.00 | 1.00 | 0.67 | 0.33 | 0.25 | 0.50 | 0.17 | 0.86 | 0.83 | 0.60 | 0.33 | 0.56 | 5.24 |
| s | 1.50 | 1.86 | 4.20 | 3.50 | 3.57 | 2.86 | 2.67 | 3.50 | 2.80 | 3.50 | 3.00 | 2.57 | 3.00 | 2.50 | 1.40 | 4.67 | 3.00 | 1.25 | 3.20 | 1.60 | 1.00 | 1.00 | 0.67 | 0.83 | 0.00 | 1.00 | 1.50 | 2.29 | 1.83 | 3.60 | 3.33 | 2.36 | 21.97 |
| a | 2.83 | 4.00 | 3.60 | 4.67 | 5.86 | 4.57 | 5.50 | 5.67 | 6.40 | 3.50 | 4.57 | 2.29 | 1.00 | 1.25 | 3.80 | 3.00 | 5.00 | 3.75 | 2.80 | 3.40 | 2.86 | 1.67 | 2.33 | 2.50 | 2.75 | 1.50 | 1.17 | 2.86 | 4.50 | 2.60 | 3.50 | 3.41 | 31.73 |
| h | 0.50 | 0.71 | 0.40 | 0.83 | 0.71 | 1.14 | 0.33 | 0.00 | 0.00 | 0.17 | 0.14 | 0.29 | 0.63 | 0.50 | 0.20 | 0.00 | 0.00 | 0.25 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.75 | 0.25 | 0.50 | 0.00 | 0.17 | 0.20 | 0.33 | 0.31 | 2.86 |
| k | 0.50 | 1.29 | 0.60 | 0.17 | 0.71 | 0.43 | 0.83 | 0.50 | 0.20 | 0.17 | 0.14 | 0.43 | 1.50 | 2.50 | 2.80 | 2.00 | 2.00 | 1.50 | 1.20 | 1.00 | 0.86 | 1.00 | 1.17 | 1.33 | 1.00 | 1.00 | 0.00 | 0.00 | 0.50 | 0.40 | 0.83 | 0.92 | 8.57 |
| x | 1.67 | 1.29 | 2.40 | 5.17 | 5.57 | 3.86 | 3.83 | 3.67 | 4.40 | 4.67 | 6.43 | 3.86 | 3.63 | 1.50 | 1.00 | 1.33 | 1.50 | 1.75 | 2.80 | 3.00 | 3.00 | 3.00 | 1.50 | 2.00 | 1.50 | 2.00 | 2.00 | 3.57 | 3.83 | 4.00 | 3.17 | 3.00 | 27.88 |
| o | 6.33 | 7.86 | 7.40 | 7.50 | 8.57 | 9.00 | 7.50 | 8.50 | 9.00 | 9.50 | 8.71 | 7.43 | 4.75 | 6.75 | 9.60 | 9.33 | 10.00 | 6.00 | 5.00 | 4.40 | 4.86 | 4.83 | 4.17 | 2.33 | 2.50 | 4.50 | 5.33 | 6.57 | 6.00 | 5.00 | 6.00 | 6.62 | 61.62 |
| i | 0.50 | 0.14 | 0.40 | 1.00 | 0.71 | 1.14 | 1.33 | 1.17 | 1.00 | 0.67 | 0.43 | 0.86 | 0.75 | 1.50 | 0.60 | 1.00 | 1.00 | 0.00 | 0.20 | 0.80 | 0.71 | 1.00 | 2.00 | 3.17 | 2.50 | 0.50 | 0.33 | 0.00 | 0.83 | 1.60 | 1.00 | 0.93 | 8.66 |
| 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 | 0.25 | 0.20 | 0.00 | 0.50 | 0.75 | 0.80 | 0.60 | 0.86 | 0.83 | 0.83 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.20 | 1.84 |
| CV | 135.67 | 171.71 | 141.60 | 157.00 | 194.71 | 183.14 | 166.50 | 154.33 | 120.60 | 112.00 | 122.00 | 110.29 | 150.00 | 206.75 | 222.00 | 240.00 | 201.75 | 148.50 | 156.00 | 119.60 | 123.29 | 118.17 | 125.50 | 160.00 | 144.75 | 101.00 | 70.50 | 81.57 | 132.17 | 134.20 | 145.00 | 146.78 | 100 |
| CVn | 59.00 | 98.43 | 79.80 | 84.00 | 118.00 | 119.29 | 104.00 | 91.17 | 89.60 | 93.67 | 89.14 | 73.29 | 88.00 | 96.75 | 96.60 | 104.00 | 82.75 | 61.00 | 41.80 | 13.40 | 6.00 | 5.50 | 15.00 | 24.00 | 21.50 | 26.00 | 34.17 | 53.43 | 91.00 | 95.80 | 102.00 | 69.62 | 47.43 |
| CVs | 76.67 | 73.29 | 61.80 | 73.00 | 76.71 | 63.86 | 62.50 | 63.17 | 31.00 | 18.33 | 32.86 | 37.00 | 62.00 | 110.00 | 125.40 | 136.00 | 119.00 | 87.50 | 114.20 | 106.20 | 117.29 | 112.67 | 110.50 | 136.00 | 123.25 | 75.00 | 36.33 | 28.14 | 41.17 | 38.40 | 43.00 | 77.17 | 52.57 |
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