Statistics of sunspot activity
May, 2026
Visual indices of solar activity by author's observations
| Date | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | Average | % |
| W |   | 155 |   | 146 | 135 | 129 |   | 77 | 93 | 99 | 106 |   | 72 |   | 55 |   |   | 76 | 72 | 73 | 93 | 89 | 106 | 108 | 143 |   |   | 155 |   |   | 127 | 105.45 | 100 |
| Wn |   | 74 |   | 65 | 55 | 53 |   | 49 | 66 | 73 | 78 |   | 60 |   | 55 |   |   | 52 | 60 | 61 | 69 | 63 | 62 | 58 | 47 |   |   | 61 |   |   | 51 | 60.60 | 57.47 |
| Ws |   | 81 |   | 81 | 80 | 76 |   | 28 | 27 | 26 | 28 |   | 12 |   | 0 |   |   | 24 | 12 | 12 | 24 | 26 | 44 | 50 | 96 |   |   | 94 |   |   | 76 | 44.85 | 42.53 |
| n |   | 9 |   | 9 | 9 | 9 |   | 5 | 6 | 6 | 6 |   | 5 |   | 3 |   |   | 6 | 5 | 5 | 6 | 6 | 7 | 8 | 11 |   |   | 11 |   |   | 9 | 7.05 | 100 |
| A |   | 1 |   | 1 | 1 | 1 |   | 1 | 1 | 0 | 0 |   | 0 |   | 0 |   |   | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |   |   | 1 |   |   | 1 | 0.55 | 7.80 |
| B |   | 2 |   | 1 | 1 | 1 |   | 0 | 0 | 1 | 1 |   | 1 |   | 0 |   |   | 2 | 1 | 1 | 0 | 1 | 0 | 2 | 1 |   |   | 1 |   |   | 2 | 0.95 | 13.48 |
| C |   | 2 |   | 2 | 2 | 3 |   | 1 | 1 | 1 | 2 |   | 2 |   | 1 |   |   | 1 | 2 | 2 | 4 | 2 | 0 | 1 | 3 |   |   | 2 |   |   | 2 | 1.80 | 25.53 |
| D |   | 3 |   | 1 | 1 | 1 |   | 1 | 2 | 1 | 1 |   | 1 |   | 2 |   |   | 2 | 1 | 1 | 0 | 0 | 3 | 2 | 2 |   |   | 3 |   |   | 2 | 1.50 | 21.28 |
| E |   | 1 |   | 0 | 0 | 0 |   | 0 | 0 | 1 | 1 |   | 0 |   | 0 |   |   | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 |   |   | 0 |   |   | 0 | 0.30 | 4.26 |
| F |   | 0 |   | 0 | 0 | 0 |   | 0 | 0 | 0 | 0 |   | 0 |   | 0 |   |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   | 0 |   |   | 0 | 0.00 | 0.00 |
| G |   | 0 |   | 2 | 2 | 0 |   | 0 | 0 | 0 | 0 |   | 0 |   | 0 |   |   | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |   |   | 1 |   |   | 0 | 0.35 | 4.96 |
| H |   | 0 |   | 1 | 1 | 1 |   | 1 | 1 | 1 | 0 |   | 0 |   | 0 |   |   | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 |   |   | 1 |   |   | 1 | 0.55 | 7.80 |
| I |   | 0 |   | 1 | 1 | 2 |   | 1 | 1 | 1 | 1 |   | 1 |   | 0 |   |   | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 |   |   | 2 |   |   | 1 | 1.05 | 14.89 |
| x |   | 3 |   | 2 | 2 | 2 |   | 1 | 1 | 1 | 1 |   | 1 |   | 0 |   |   | 2 | 1 | 1 | 0 | 1 | 1 | 3 | 2 |   |   | 2 |   |   | 3 | 1.50 | 21.28 |
| r |   | 0 |   | 0 | 0 | 2 |   | 0 | 0 | 0 | 0 |   | 1 |   | 0 |   |   | 0 | 1 | 1 | 1 | 1 | 2 | 0 | 2 |   |   | 2 |   |   | 0 | 0.65 | 9.22 |
| s |   | 1 |   | 4 | 5 | 3 |   | 2 | 3 | 2 | 3 |   | 0 |   | 0 |   |   | 2 | 2 | 0 | 2 | 2 | 2 | 3 | 2 |   |   | 2 |   |   | 3 | 2.15 | 30.50 |
| a |   | 5 |   | 3 | 2 | 2 |   | 2 | 2 | 2 | 1 |   | 2 |   | 3 |   |   | 2 | 1 | 3 | 3 | 2 | 1 | 0 | 4 |   |   | 3 |   |   | 1 | 2.20 | 31.21 |
| h |   | 0 |   | 0 | 0 | 0 |   | 0 | 0 | 0 | 0 |   | 0 |   | 0 |   |   | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |   |   | 1 |   |   | 1 | 0.15 | 2.13 |
| k |   | 0 |   | 0 | 0 | 0 |   | 0 | 0 | 1 | 1 |   | 1 |   | 0 |   |   | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |   |   | 1 |   |   | 1 | 0.40 | 5.67 |
| x |   | 1 |   | 3 | 3 | 4 |   | 3 | 3 | 2 | 1 |   | 1 |   | 0 |   |   | 1 | 1 | 1 | 1 | 2 | 3 | 2 | 4 |   |   | 4 |   |   | 3 | 2.15 | 30.50 |
| o |   | 5 |   | 5 | 4 | 4 |   | 1 | 2 | 3 | 4 |   | 3 |   | 3 |   |   | 5 | 3 | 3 | 4 | 2 | 2 | 6 | 7 |   |   | 6 |   |   | 5 | 3.85 | 54.61 |
| i |   | 3 |   | 1 | 2 | 1 |   | 1 | 1 | 0 | 1 |   | 1 |   | 0 |   |   | 0 | 1 | 1 | 1 | 2 | 2 | 0 | 0 |   |   | 1 |   |   | 0 | 0.95 | 13.48 |
| c |   | 0 |   | 0 | 0 | 0 |   | 0 | 0 | 1 | 0 |   | 0 |   | 0 |   |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   | 0 |   |   | 1 | 0.10 | 1.42 |
| CV |   | 113 |   | 111 | 118 | 71 |   | 51 | 76 | 105 | 93 |   | 74 |   | 46 |   |   | 66 | 50 | 44 | 65 | 59 | 128 | 144 | 136 |   |   | 178 |   |   | 151 | 93.95 | 100 |
| CVn |   | 43 |   | 31 | 30 | 26 |   | 33 | 58 | 87 | 75 |   | 70 |   | 46 |   |   | 62 | 48 | 42 | 50 | 37 | 56 | 65 | 28 |   |   | 74 |   |   | 76 | 51.85 | 55.19 |
| CVs |   | 70 |   | 80 | 88 | 45 |   | 18 | 18 | 18 | 18 |   | 4 |   | 0 |   |   | 4 | 2 | 2 | 15 | 22 | 72 | 79 | 108 |   |   | 104 |   |   | 75 | 42.10 | 44.81 |
| gr |   | 8 |   | 7 | 7 | 6 |   | 3 | 5 | 5 | 5 |   | 5 |   | 3 |   |   | 5 | 5 | 5 | 5 | 4 | 4 | 6 | 9 |   |   | 7 |   |   | 6 | 5.50 | 78.02 |
| grfp |   | 23 |   | 17 | 15 | 12 |   | 8 | 16 | 15 | 23 |   | 9 |   | 14 |   |   | 7 | 10 | 10 | 17 | 11 | 19 | 13 | 17 |   |   | 19 |   |   | 8 | 14.15 | 42.37 |
| grf |   | 41 |   | 37 | 28 | 24 |   | 17 | 16 | 23 | 22 |   | 13 |   | 11 |   |   | 8 | 12 | 13 | 15 | 16 | 14 | 13 | 14 |   |   | 22 |   |   | 26 | 19.25 | 57.63 |
| efp |   | 0 |   | 1 | 1 | 2 |   | 1 | 0 | 1 | 1 |   | 0 |   | 0 |   |   | 1 | 0 | 0 | 1 | 2 | 2 | 1 | 1 |   |   | 3 |   |   | 2 | 1.00 | 14.18 |
| ef |   | 1 |   | 1 | 1 | 1 |   | 1 | 1 | 0 | 0 |   | 0 |   | 0 |   |   | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |   |   | 1 |   |   | 1 | 0.55 | 7.80 |
| Cond |   | 3 |   | 3 | 2 | 1 |   | 3 | 4 | 3 | 2 |   | 3 |   | 4 |   |   | 3 | 2 | 4 | 3 | 3 | 2 | 4 | 3 |   |   | 4 |   |   | 3 | 2.95 | 41.00 |
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