Statistics of sunspot activity
June, 1997
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 | 32.25 | 32.50 | 23.50 | 16.33 | 14.50 | 15.50 | 19.75 | 31.33 | 23.00 | 11.00 | 11.00 | 21.25 | 26.75 | 30.67 | 29.75 | 37.33 | 22.50 | 28.00 | 18.75 | 14.75 | 11.00 | 20.00 | 13.00 | 14.00 | 29.33 | 23.00 | 18.50 | 21.33 | 11.67 | 0.00 | 20.74 | 100 |
| Wn | 12.75 | 12.00 | 2.75 | 0.00 | 0.00 | 0.00 | 3.00 | 18.33 | 11.00 | 11.00 | 11.00 | 21.25 | 26.75 | 30.67 | 29.75 | 37.33 | 22.50 | 14.00 | 2.75 | 2.75 | 0.00 | 14.50 | 13.00 | 14.00 | 29.33 | 23.00 | 18.50 | 21.33 | 11.67 | 0.00 | 13.83 | 66.68 |
| Ws | 19.50 | 20.50 | 20.75 | 16.33 | 14.50 | 15.50 | 16.75 | 13.00 | 12.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 14.00 | 16.00 | 12.00 | 11.00 | 5.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 6.91 | 33.32 |
| n | 2.00 | 2.00 | 1.25 | 1.00 | 1.00 | 1.00 | 1.25 | 2.67 | 2.00 | 1.00 | 1.00 | 1.75 | 2.00 | 2.00 | 2.00 | 2.00 | 1.25 | 2.00 | 1.25 | 1.25 | 1.00 | 1.50 | 1.00 | 1.00 | 1.67 | 1.00 | 1.00 | 1.67 | 1.00 | 0.00 | 1.42 | 100 |
| A | 0.00 | 0.50 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 1.67 | 1.33 | 1.00 | 1.00 | 0.25 | 1.00 | 0.33 | 0.50 | 1.00 | 0.25 | 0.25 | 0.25 | 0.75 | 1.00 | 0.50 | 0.25 | 0.25 | 0.33 | 0.00 | 0.00 | 1.00 | 1.00 | 0.00 | 0.49 | 34.51 |
| B | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.75 | 0.75 | 1.00 | 0.50 | 0.00 | 1.00 | 1.50 | 0.75 | 0.50 | 0.00 | 1.00 | 0.75 | 0.75 | 0.33 | 0.00 | 0.25 | 0.67 | 0.00 | 0.00 | 0.37 | 26.08 |
| C | 0.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.50 | 0.25 | 0.67 | 0.75 | 0.67 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.19 | 13.33 |
| D | 0.50 | 1.00 | 1.00 | 1.00 | 1.00 | 0.75 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.50 | 0.75 | 0.00 | 0.00 | 0.00 | 0.29 | 20.39 |
| E | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| F | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| G | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 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 | 0.00 | 0.00 | 0.00 | 0.02 | 1.18 |
| H | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| I | 0.50 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 4.51 |
| x | 0.25 | 0.50 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 1.67 | 1.67 | 1.00 | 1.00 | 1.00 | 1.75 | 1.33 | 1.00 | 1.00 | 1.25 | 1.75 | 1.00 | 1.25 | 1.00 | 1.50 | 1.00 | 1.00 | 0.67 | 0.00 | 0.25 | 1.67 | 1.00 | 0.00 | 0.86 | 60.59 |
| r | 1.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.75 | 0.25 | 0.67 | 0.75 | 0.67 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.50 | 0.25 | 0.00 | 0.00 | 0.00 | 0.22 | 15.69 |
| s | 0.50 | 0.50 | 1.00 | 1.00 | 0.50 | 0.00 | 0.75 | 1.00 | 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 | 0.25 | 0.00 | 0.00 | 0.00 | 0.18 | 12.94 |
| a | 0.00 | 1.00 | 0.00 | 0.00 | 0.50 | 1.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.25 | 0.00 | 0.00 | 0.00 | 0.15 | 10.78 |
| h | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| k | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| x | 0.50 | 1.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 2.00 | 1.67 | 1.00 | 1.00 | 0.50 | 1.00 | 0.33 | 0.50 | 1.00 | 0.25 | 0.25 | 0.25 | 0.75 | 1.00 | 0.50 | 0.25 | 0.25 | 0.33 | 0.00 | 0.00 | 1.00 | 1.00 | 0.00 | 0.55 | 39.02 |
| o | 1.50 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.25 | 0.67 | 0.33 | 0.00 | 0.00 | 1.25 | 1.00 | 1.67 | 1.50 | 0.67 | 0.75 | 1.75 | 1.00 | 0.50 | 0.00 | 1.00 | 0.75 | 0.75 | 1.33 | 0.75 | 1.00 | 0.67 | 0.00 | 0.00 | 0.84 | 59.02 |
| i | 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 | 0.33 | 0.25 | 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 | 0.03 | 1.96 |
| 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 | 0.00 | 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 |
| CV | 17.25 | 24.50 | 25.25 | 25.00 | 22.00 | 19.25 | 28.50 | 12.33 | 3.33 | 1.00 | 1.00 | 5.25 | 3.75 | 5.67 | 10.00 | 10.67 | 2.50 | 4.50 | 6.50 | 1.75 | 1.00 | 2.50 | 1.75 | 1.75 | 8.67 | 12.00 | 14.75 | 2.33 | 1.00 | 0.00 | 9.19 | 100 |
| CVn | 6.00 | 5.50 | 0.25 | 0.00 | 0.00 | 0.00 | 4.75 | 1.67 | 1.00 | 1.00 | 1.00 | 5.25 | 3.75 | 5.67 | 10.00 | 10.67 | 2.50 | 1.75 | 0.25 | 0.25 | 0.00 | 2.00 | 1.75 | 1.75 | 8.67 | 12.00 | 14.75 | 2.33 | 1.00 | 0.00 | 3.52 | 38.26 |
| CVs | 11.25 | 19.00 | 25.00 | 25.00 | 22.00 | 19.25 | 23.75 | 10.67 | 2.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.75 | 6.25 | 1.50 | 1.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.68 | 61.74 |
|
