Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 8082 | N21 | E59 | 01 | 0000 | ALPHA | Sep 8, 1997 | Sep 15, 1997 | Sep 29, 1997 |
| № 8081 | N34 | E51 | 03 | 0020 | ALPHA | Sep 8, 1997 | Sep 15, 1997 | Sep 30, 1997 |
| № 8078 | N21 | W45 | 03 | 0010 | ALPHA | Aug 31, 1997 | Sep 7, 1997 | Sep 21, 1997 |
| № 8076 | N28 | W41 | 20 | 0210 | BETA | Sep 1, 1997 | Sep 8, 1997 | Sep 22, 1997 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1968, January to 1997, September. Gray background - average solar cycle.
