| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/09/28 | 7 | 30 | DAI | N11E42 | |
| 2025/09/29 | 12 | 80 | DAI | N11E27 | |
| 2025/09/30 | 21 | 250 | DKC | N10E12 | |
| 2025/10/01 | 23 | 300 | DKI | N10W00 | |
| 2025/10/02 | 20 | 300 | DKI | N10W14 | |
| 2025/10/03 | 13 | 320 | DHC | N10W28 | |
| 2025/10/04 | 17 | 320 | EKC | N10W43 | |
| 2025/10/05 | 14 | 190 | EAC | N10W57 | |
| 2025/10/06 | 8 | 130 | EAI | N10W71 | |
| 2025/10/07 | 5 | 130 | EAI | N09W82 | |
| 2025/10/08 | 5 | 130 | EAI | N10W94 |
| B | C | M |
|---|---|---|
| 4 | 17 | 3 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M2.0 | 2025/10/09 | 12:11 | 12:31 | 12:52 | |
| 2 | M1.5 | 2025/10/03 | 05:00 | 05:23 | 05:42 | |
| 3 | M1.0 | 2025/09/29 | 11:06 | 11:15 | 11:18 | |
| 4 | C8.6 | 2025/10/01 | 11:28 | 11:35 | 11:41 | |
| 5 | C5.6 | 2025/10/07 | 11:20 | 11:29 | 11:34 | |
| 6 | C4.6 | 2025/10/04 | 03:10 | 03:22 | 03:31 | |
| 7 | C4.4 | 2025/09/29 | 14:17 | 14:25 | 14:30 | |
| 8 | C3.9 | 2025/09/29 | 20:06 | 20:11 | 20:16 | |
| 9 | C3.8 | 2025/09/30 | 04:29 | 04:37 | 04:43 | |
| 10 | C3.6 | 2025/09/29 | 07:54 | 08:02 | 08:09 |
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| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 119.2 -4.8 |
| Last 30 days | 119.5 +1.5 |