Sunspots and active regions — October 01, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4240 | N16 | E69 | 01 | 0010 | Alpha | Oct 7, 2025 | Oct 14, 2025 | Oct 28, 2025 |
| № 4239 | S10 | W39 | 01 | 0080 | Alpha | Sep 29, 2025 | Oct 6, 2025 | Oct 19, 2025 |
| № 4238 | S14 | W39 | 07 | 0060 | Beta | Sep 29, 2025 | Oct 6, 2025 | Oct 19, 2025 |
| № 4237 | N16 | W17 | 02 | 0010 | Beta | Oct 1, 2025 | Oct 7, 2025 | Oct 21, 2025 |
| № 4236 | N10 | E16 | 21 | 0250 | Beta-Gamma-Delta | Oct 3, 2025 | Oct 10, 2025 | Oct 23, 2025 |
| № 4235 | N27 | E26 | 01 | 0030 | Alpha | Oct 4, 2025 | Oct 11, 2025 | Oct 25, 2025 |
| № 4233 | N17 | E23 | 11 | 0120 | Beta | Oct 4, 2025 | Oct 10, 2025 | Oct 24, 2025 |
| № 4232 | N04 | E24 | 09 | 0250 | Beta-Gamma | Oct 4, 2025 | Oct 10, 2025 | Oct 24, 2025 |
| № 4230 | S11 | W35 | 16 | 0190 | Beta-Gamma-Delta | Sep 29, 2025 | Oct 6, 2025 | Oct 20, 2025 |
| № 4226 | S09 | W60 | 02 | 0090 | Alpha | Sep 27, 2025 | Oct 4, 2025 | Oct 18, 2025 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1996, January to 2025, October. Gray background - average solar cycle.
