Sunspots and active regions — September 25, 2025
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) | |
|---|---|---|---|---|---|---|---|---|
| № 4230 | S11 | E45 | 07 | 0100 | Beta-Gamma | Sep 29, 2025 | Oct 6, 2025 | Oct 20, 2025 |
| № 4229 | S03 | W47 | 08 | 0060 | Beta-Gamma | Sep 22, 2025 | Sep 29, 2025 | Oct 13, 2025 |
| № 4228 | N04 | E27 | 01 | 0030 | Alpha | Sep 28, 2025 | Oct 5, 2025 | Oct 18, 2025 |
| № 4227 | S19 | E17 | 05 | 0080 | Alpha | Sep 27, 2025 | Oct 4, 2025 | Oct 18, 2025 |
| № 4226 | S11 | E19 | 15 | 0220 | Beta-Gamma | Sep 27, 2025 | Oct 4, 2025 | Oct 18, 2025 |
| № 4225 | N10 | W25 | 02 | 0110 | Alpha | Sep 24, 2025 | Oct 1, 2025 | Oct 14, 2025 |
| № 4224 | S13 | W49 | 05 | 0050 | Beta | Sep 22, 2025 | Sep 29, 2025 | Oct 13, 2025 |
| № 4221 | N04 | W66 | 01 | 0060 | Alpha | Sep 21, 2025 | Sep 28, 2025 | Oct 11, 2025 |
| № 4220 | S17 | W86 | 05 | 0150 | Beta | Sep 19, 2025 | Sep 26, 2025 | Oct 10, 2025 |
| № 4217 | S17 | W60 | 10 | 0140 | Beta-Gamma | Sep 21, 2025 | Sep 28, 2025 | Oct 12, 2025 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1996, January to 2025, September. Gray background - average solar cycle.
