Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 3, 2015. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2427 | N18 | W17 | 14 | 0180 | Beta | Oct 3, 2015 | Oct 10, 2015 | Oct 23, 2015 |
| № 2422 | S20 | W83 | 11 | 0480 | Beta-Gamma-Delta | Sep 28, 2015 | Oct 5, 2015 | Oct 18, 2015 |
| № 2420 | N11 | W84 | 03 | 0010 | Beta | Sep 28, 2015 | Oct 4, 2015 | Oct 18, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to October 2015. The gray background is the average SSN index.
Diary
- 28.10.2026 The Last Sunspot
- 28.10.2026 Space weather on October 28, 2026
- 27.10.2026 Space weather on October 27, 2026