| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/09/26 | 2 | 10 | HAX | N02E78 | |
| 2025/09/27 | 1 | 90 | CAO | N03E64 | |
| 2025/09/28 | 5 | 180 | DSO | N04E48 | |
| 2025/09/29 | 3 | 250 | DHO | N05E35 | |
| 2025/09/30 | 9 | 250 | DHI | N04E22 | |
| 2025/10/01 | 12 | 260 | DHI | N04E08 | |
| 2025/10/02 | 18 | 300 | DHI | N04W06 | |
| 2025/10/03 | 18 | 310 | DHI | N05W18 | |
| 2025/10/04 | 18 | 310 | DHI | N04W34 | |
| 2025/10/05 | 15 | 260 | DKI | N04W49 | |
| 2025/10/06 | 7 | 260 | CHO | N04W64 | |
| 2025/10/07 | 3 | 250 | CHO | N03W75 | |
| 2025/10/08 | 3 | 250 | CHO | N03W88 | |
| 2025/10/09 | 3 | 250 | CHO | N02W0* |
| B | C | M |
|---|---|---|
| 1 | 18 | 7 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M6.4 | 2025/09/28 | 08:34 | 08:43 | 08:49 | |
| 2 | M3.6 | 2025/09/29 | 01:37 | 01:45 | 01:47 | |
| 3 | M1.2 | 2025/09/30 | 00:51 | 00:56 | 00:58 | |
| 4 | M1.2 | 2025/10/01 | 02:15 | 02:26 | 02:37 | |
| 5 | M1.2 | 2025/10/01 | 16:36 | 16:50 | 17:00 | |
| 6 | M1.13 | 2025/09/29 | 11:23 | 11:39 | 11:52 | |
| 7 | M1.1 | 2025/09/27 | 07:03 | 07:14 | 07:18 | |
| 8 | C9.7 | 2025/10/03 | 06:02 | 06:11 | 06:26 | |
| 9 | C7.7 | 2025/09/27 | 17:51 | 17:56 | 17:59 | |
| 10 | C7.4 | 2025/09/28 | 19:37 | 19:56 | 20:01 |
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |