| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/09/06 | 6 | 320 | EAO | S24E70 | |
| 2001/09/07 | 18 | 720 | FKI | S26E56 | |
| 2001/09/08 | 35 | 850 | FKI | S26E45 | |
| 2001/09/09 | 47 | 940 | FKC | S26E33 | |
| 2001/09/10 | 60 | 1050 | FKC | S27E18 | |
| 2001/09/11 | 52 | 1110 | FKC | S27E07 | |
| 2001/09/12 | 44 | 1030 | FKI | S27W07 | |
| 2001/09/13 | 48 | 1000 | FKC | S26W18 | |
| 2001/09/14 | 34 | 960 | FKI | S25W33 | |
| 2001/09/15 | 34 | 1020 | FKC | S28W44 | |
| 2001/09/16 | 20 | 620 | FKI | S28W54 | |
| 2001/09/17 | 15 | 550 | FKI | S29W64 | |
| 2001/09/18 | 10 | 420 | EKI | S30W75 | |
| 2001/09/19 | 1 | 180 | HSX | S30W84 |
| C | M | X |
|---|---|---|
| 22 | 14 | 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | X1.36 | 2001/09/09 | 20:40 | 20:45 | 20:48 | |
| 2 | X1.16 | 2001/09/17 | 15:44 | 15:50 | 15:54 | |
| 3 | M8.08 | 2001/09/16 | 03:39 | 03:53 | 04:18 | |
| 4 | M3.22 | 2001/09/09 | 15:23 | 15:26 | 15:28 | |
| 5 | M3.2 | 2001/09/05 | 22:23 | 22:33 | 22:46 | |
| 6 | M2.97 | 2001/09/09 | 18:35 | 18:41 | 18:43 | |
| 7 | M2.8 | 2001/09/09 | 02:32 | 02:40 | 02:47 | |
| 8 | M2.14 | 2001/09/15 | 11:04 | 11:28 | 11:54 | |
| 9 | M2.08 | 2001/09/18 | 00:02 | 00:08 | 00:15 | |
| 10 | M1.79 | 2001/09/08 | 04:38 | 04:57 | 05:07 |
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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 |