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) | |
|---|---|---|---|---|---|---|---|---|
| № 8091 | N25 | E61 | 05 | 0040 | BETA | Oct 9, 1997 | Oct 16, 1997 | Oct 30, 1997 |
| № 8090 | S27 | E42 | 01 | 0040 | ALPHA | Oct 7, 1997 | Oct 14, 1997 | Oct 28, 1997 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1968, January to 1997, October. Gray background - average solar cycle.
