Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 30, 2019. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 2749 | S09 | E88 | 01 | 0000 | Alpha | Oct 8, 2019 | Oct 14, 2019 | Oct 28, 2019 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1990 to September 2019. The gray background is the average SSN index.
