Statistics of sunspot activity
June, 1997
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 | Average | % |
| W | 31 | 29 | 21 | 16 | 16 | 15 | 15 | 25 | 24 | 12 | 12 | 27 | 29 | 19 | 17 |   |   |   | 0 | 0 |   | 0 | 14 | 12 | 36 | 26 | 18 | 13 | 0 | 0 | 16.42 | 100 |
| Wn | 11 | 11 | 0 | 0 | 0 | 0 | 0 | 11 | 12 | 12 | 12 | 27 | 29 | 19 | 17 |   |   |   | 0 | 0 |   | 0 | 14 | 12 | 36 | 26 | 18 | 13 | 0 | 0 | 10.77 | 65.57 |
| Ws | 20 | 18 | 21 | 16 | 16 | 15 | 15 | 14 | 12 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.65 | 34.43 |
| n | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 2 | 2 | 1 | 1 |   |   |   | 0 | 0 |   | 0 | 1 | 1 | 2 | 1 | 1 | 1 | 0 | 0 | 1.08 | 100 |
| A | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0.04 | 3.57 |
| B | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.04 | 3.57 |
| C | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.15 | 14.29 |
| D | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0.46 | 42.86 |
| E | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| F | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| H | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| I | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0.38 | 35.71 |
| x | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0.08 | 7.14 |
| r | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 1 | 2 | 2 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0.50 | 46.43 |
| s | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.19 | 17.86 |
| a | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0.31 | 28.57 |
| h | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| k | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| x | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0.42 | 39.29 |
| o | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.35 | 32.14 |
| i | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0.31 | 28.57 |
| c | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| CV | 26 | 26 | 25 | 25 | 19 | 19 | 25 | 15 | 9 | 4 | 4 | 20 | 20 | 9 | 12 |   |   |   | 0 | 0 |   | 0 | 2 | 4 | 23 | 22 | 19 | 4 | 0 | 0 | 12.77 | 100 |
| CVn | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 4 | 20 | 20 | 9 | 12 |   |   |   | 0 | 0 |   | 0 | 2 | 4 | 23 | 22 | 19 | 4 | 0 | 0 | 6.12 | 47.89 |
| CVs | 22 | 22 | 25 | 25 | 19 | 19 | 25 | 11 | 5 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.65 | 52.11 |
| gr | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |   |   |   | 0 | 0 |   | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0.85 | 75.86 |
| grfp | 6 | 7 | 10 | 3 | 5 | 4 | 5 | 2 | 2 | 2 | 2 | 6 | 2 | 3 | 1 |   |   |   | 0 | 0 |   | 0 | 0 | 1 | 5 | 10 | 6 | 1 | 0 | 0 | 3.19 | 59.29 |
| grf | 4 | 1 | 1 | 3 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 1 | 6 | 6 | 6 |   |   |   | 0 | 0 |   | 0 | 4 | 1 | 10 | 6 | 2 | 2 | 0 | 0 | 2.19 | 40.71 |
| efp | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.19 | 17.24 |
| ef | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 |   | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0.08 | 6.90 |
| Cond | 2 | 3 | 3 | 1 | 1 | 2 | 2 | 3 | 2 | 3 | 3 | 3 | 2 | 3 | 2 |   |   |   | 2 | 4 |   | 2 | 1 | 2 | 2 | 2 | 3 | 1 | 2 | 2 | 2.23 | 55.38 |
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