Statistics of sunspot activity
July, 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 | 172.14 | 206.00 | 169.00 | 167.29 | 132.17 | 169.86 | 188.57 | 176.17 | 134.57 | 159.17 | 182.67 | 135.83 | 149.71 | 139.33 | 126.14 | 141.60 | 142.00 | 151.00 | 205.17 | 205.83 | 244.00 | 274.20 | 268.60 | 202.80 | 168.00 | 133.86 | 128.50 | 103.29 | 162.00 | 169.40 | 191.83 | 170.99 | 100 |
| Wn | 91.14 | 126.29 | 107.40 | 102.14 | 87.33 | 98.57 | 102.43 | 96.83 | 66.00 | 72.17 | 98.50 | 77.17 | 82.14 | 85.00 | 71.57 | 75.00 | 81.17 | 79.67 | 121.50 | 119.83 | 137.43 | 130.40 | 112.60 | 82.60 | 65.20 | 30.00 | 26.33 | 23.43 | 60.83 | 62.20 | 56.17 | 84.81 | 49.60 |
| Ws | 81.00 | 79.71 | 61.60 | 65.14 | 44.83 | 71.29 | 86.14 | 79.33 | 68.57 | 87.00 | 84.17 | 58.67 | 67.57 | 54.33 | 54.57 | 66.60 | 60.83 | 71.33 | 83.67 | 86.00 | 106.57 | 143.80 | 156.00 | 120.20 | 102.80 | 103.86 | 102.17 | 79.86 | 101.17 | 107.20 | 135.67 | 86.18 | 50.40 |
| n | 10.43 | 12.29 | 9.80 | 9.29 | 8.17 | 9.14 | 9.86 | 9.33 | 7.57 | 8.00 | 10.17 | 8.67 | 9.14 | 9.33 | 8.14 | 8.40 | 7.83 | 8.33 | 10.83 | 10.17 | 10.00 | 12.40 | 12.40 | 9.60 | 9.00 | 8.14 | 8.00 | 6.86 | 10.50 | 10.00 | 10.17 | 9.42 | 100 |
| A | 0.14 | 0.86 | 1.40 | 1.86 | 2.17 | 2.29 | 1.57 | 1.33 | 0.71 | 0.50 | 0.83 | 1.17 | 1.14 | 2.50 | 2.43 | 1.60 | 0.50 | 0.33 | 1.33 | 0.83 | 0.43 | 1.20 | 1.00 | 0.40 | 0.80 | 1.29 | 0.50 | 0.71 | 2.50 | 2.00 | 1.50 | 1.22 | 12.96 |
| B | 0.00 | 0.57 | 0.60 | 1.43 | 0.67 | 1.00 | 1.14 | 0.83 | 1.14 | 2.00 | 2.17 | 1.67 | 2.29 | 2.33 | 1.86 | 1.40 | 1.33 | 1.67 | 2.33 | 2.50 | 2.14 | 1.20 | 2.20 | 1.80 | 0.60 | 0.71 | 1.50 | 1.29 | 2.50 | 1.60 | 1.83 | 1.49 | 15.86 |
| C | 2.57 | 4.00 | 2.80 | 2.29 | 1.17 | 1.71 | 2.14 | 3.33 | 3.00 | 2.67 | 3.83 | 2.00 | 2.14 | 1.00 | 0.86 | 2.20 | 2.67 | 3.17 | 2.50 | 2.17 | 1.71 | 2.60 | 1.80 | 1.40 | 2.00 | 1.71 | 2.83 | 0.57 | 1.83 | 1.60 | 1.50 | 2.19 | 23.22 |
| D | 2.00 | 1.86 | 3.00 | 2.57 | 2.67 | 2.57 | 3.00 | 1.83 | 1.29 | 0.67 | 1.17 | 0.67 | 0.86 | 0.50 | 0.43 | 0.80 | 1.17 | 0.33 | 1.83 | 3.00 | 3.71 | 4.00 | 5.40 | 4.80 | 3.60 | 3.14 | 0.67 | 1.14 | 2.33 | 3.20 | 2.83 | 2.16 | 22.96 |
| E | 0.71 | 0.57 | 0.40 | 0.14 | 0.17 | 0.29 | 0.00 | 0.00 | 0.29 | 0.33 | 0.50 | 0.17 | 0.14 | 0.00 | 0.43 | 0.40 | 0.33 | 0.33 | 0.33 | 0.17 | 0.29 | 0.80 | 0.20 | 0.00 | 0.00 | 0.00 | 0.33 | 0.14 | 0.00 | 0.00 | 0.33 | 0.25 | 2.67 |
| F | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.06 |
| G | 0.43 | 0.14 | 0.20 | 0.00 | 0.17 | 0.43 | 0.43 | 1.17 | 0.71 | 0.50 | 0.33 | 1.00 | 0.43 | 0.67 | 0.00 | 0.60 | 0.67 | 1.33 | 0.83 | 0.17 | 0.00 | 0.40 | 0.00 | 0.20 | 1.00 | 0.43 | 0.50 | 0.43 | 0.00 | 0.00 | 0.17 | 0.43 | 4.57 |
| H | 0.29 | 0.57 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 0.50 | 0.29 | 0.50 | 0.17 | 0.00 | 0.14 | 0.00 | 0.43 | 0.40 | 0.17 | 0.00 | 0.00 | 0.17 | 0.14 | 0.40 | 0.00 | 0.20 | 0.20 | 0.00 | 0.83 | 0.14 | 0.17 | 0.20 | 0.00 | 0.20 | 2.12 |
| I | 4.29 | 3.71 | 1.40 | 1.00 | 1.17 | 0.86 | 1.29 | 0.33 | 0.14 | 0.83 | 1.00 | 2.00 | 2.00 | 2.33 | 1.71 | 1.00 | 1.00 | 1.17 | 1.67 | 1.17 | 1.57 | 1.80 | 1.80 | 0.80 | 0.80 | 0.86 | 0.83 | 2.43 | 1.17 | 1.40 | 2.00 | 1.47 | 15.59 |
| x | 0.14 | 1.43 | 2.00 | 3.29 | 2.83 | 3.29 | 2.71 | 2.17 | 1.86 | 2.50 | 3.00 | 2.83 | 3.43 | 4.83 | 4.29 | 3.00 | 1.83 | 2.00 | 3.67 | 3.33 | 2.57 | 2.40 | 3.20 | 2.20 | 1.40 | 2.00 | 2.00 | 2.00 | 5.00 | 3.60 | 3.33 | 2.71 | 28.82 |
| r | 0.14 | 0.14 | 0.20 | 0.29 | 0.17 | 0.43 | 0.29 | 0.33 | 1.00 | 0.67 | 0.83 | 0.00 | 1.00 | 0.33 | 0.29 | 0.20 | 0.50 | 0.17 | 0.83 | 1.17 | 0.86 | 1.60 | 1.00 | 0.20 | 0.40 | 0.57 | 0.50 | 0.29 | 0.67 | 0.80 | 0.83 | 0.54 | 5.72 |
| s | 4.29 | 6.57 | 3.00 | 2.43 | 2.67 | 1.29 | 2.14 | 2.67 | 2.43 | 2.00 | 1.83 | 3.00 | 2.14 | 1.50 | 1.57 | 1.80 | 1.67 | 2.67 | 2.83 | 1.50 | 2.14 | 2.20 | 2.00 | 1.60 | 2.60 | 1.43 | 1.67 | 1.86 | 1.67 | 2.40 | 1.67 | 2.30 | 24.39 |
| a | 4.57 | 3.43 | 4.20 | 3.14 | 2.50 | 4.00 | 4.29 | 3.67 | 1.86 | 2.00 | 3.17 | 1.50 | 0.86 | 1.17 | 1.00 | 2.20 | 3.33 | 3.00 | 2.33 | 2.83 | 3.57 | 4.60 | 5.40 | 4.40 | 3.20 | 3.14 | 2.00 | 1.71 | 1.67 | 1.80 | 3.33 | 2.90 | 30.78 |
| h | 0.14 | 0.29 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.43 | 0.50 | 0.50 | 1.00 | 1.00 | 1.00 | 0.57 | 0.60 | 0.17 | 0.17 | 0.00 | 0.17 | 0.14 | 0.40 | 0.00 | 0.20 | 0.20 | 0.14 | 0.17 | 0.00 | 0.83 | 1.20 | 0.33 | 0.34 | 3.65 |
| k | 1.14 | 0.43 | 0.40 | 0.14 | 0.00 | 0.14 | 0.43 | 0.00 | 0.00 | 0.33 | 0.83 | 0.33 | 0.71 | 0.50 | 0.43 | 0.60 | 0.33 | 0.33 | 1.17 | 1.17 | 0.71 | 1.20 | 0.80 | 1.00 | 1.20 | 0.86 | 1.67 | 1.00 | 0.67 | 0.20 | 0.67 | 0.63 | 6.64 |
| x | 4.71 | 5.14 | 2.80 | 2.86 | 3.33 | 3.14 | 3.14 | 2.17 | 1.14 | 1.83 | 2.00 | 3.17 | 3.29 | 4.83 | 4.57 | 3.00 | 1.67 | 1.50 | 3.00 | 2.17 | 2.14 | 3.40 | 2.80 | 1.40 | 1.80 | 2.14 | 2.17 | 3.29 | 3.83 | 3.60 | 3.50 | 2.89 | 30.67 |
| o | 4.43 | 5.43 | 4.60 | 4.71 | 4.17 | 4.57 | 5.43 | 6.17 | 6.14 | 5.50 | 7.50 | 5.33 | 5.14 | 4.50 | 2.86 | 4.80 | 5.83 | 6.33 | 6.17 | 6.33 | 5.29 | 5.20 | 7.00 | 5.60 | 5.40 | 5.29 | 4.50 | 3.00 | 5.83 | 5.00 | 5.00 | 5.26 | 55.85 |
| i | 1.29 | 1.57 | 2.20 | 1.71 | 0.67 | 1.43 | 1.14 | 1.00 | 0.29 | 0.67 | 0.67 | 0.17 | 0.71 | 0.00 | 0.71 | 0.40 | 0.33 | 0.33 | 1.67 | 1.67 | 2.57 | 3.80 | 2.60 | 2.60 | 1.80 | 0.71 | 1.33 | 0.57 | 0.83 | 1.40 | 1.67 | 1.24 | 13.19 |
| c | 0.00 | 0.14 | 0.20 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 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 | 0.03 | 0.29 |
| CV | 166.14 | 163.71 | 133.20 | 99.71 | 89.83 | 99.14 | 121.86 | 120.83 | 96.71 | 97.33 | 129.83 | 123.00 | 120.71 | 101.33 | 79.43 | 109.60 | 94.83 | 102.00 | 136.00 | 133.67 | 138.86 | 196.00 | 170.00 | 161.80 | 162.80 | 122.00 | 129.17 | 91.29 | 123.33 | 143.00 | 130.17 | 125.40 | 100 |
| CVn | 89.29 | 91.14 | 75.80 | 57.57 | 56.33 | 55.14 | 50.00 | 47.33 | 30.57 | 22.67 | 59.00 | 57.83 | 71.00 | 58.50 | 45.71 | 42.00 | 45.67 | 45.00 | 65.50 | 68.83 | 69.86 | 81.80 | 66.20 | 60.40 | 58.00 | 12.86 | 17.50 | 10.43 | 34.83 | 44.20 | 28.67 | 52.25 | 41.66 |
| CVs | 76.86 | 72.57 | 57.40 | 42.14 | 33.50 | 44.00 | 71.86 | 73.50 | 66.14 | 74.67 | 70.83 | 65.17 | 49.71 | 42.83 | 33.71 | 67.60 | 49.17 | 57.00 | 70.50 | 64.83 | 69.00 | 114.20 | 103.80 | 101.40 | 104.80 | 109.14 | 111.67 | 80.86 | 88.50 | 98.80 | 101.50 | 73.15 | 58.34 |
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