| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2000/09/17 | 1 | 60 | HSX | N12E80 | |
| 2000/09/18 | 5 | 170 | DSO | N11E69 | |
| 2000/09/19 | 12 | 320 | DAO | N12E57 | |
| 2000/09/20 | 13 | 360 | EAO | N12E41 | |
| 2000/09/21 | 16 | 210 | EAO | N12E30 | |
| 2000/09/22 | 20 | 160 | ESO | N12E17 | |
| 2000/09/23 | 18 | 170 | CSO | N13E03 | |
| 2000/09/24 | 11 | 140 | CSO | N14W11 | |
| 2000/09/25 | 6 | 80 | CSO | N15W28 | |
| 2000/09/26 | 5 | 80 | CSO | N15W42 | |
| 2000/09/27 | 4 | 60 | CSO | N16W55 | |
| 2000/09/28 | 4 | 50 | CSO | N16W69 | |
| 2000/09/29 | 2 | 10 | CRO | N16W81 |
| C | M |
|---|---|
| 8 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.38 | 2000/09/27 | 03:05 | 03:12 | 03:16 | |
| 2 | C7.71 | 2000/09/17 | 06:33 | 06:43 | 06:49 | |
| 3 | C7.49 | 2000/09/27 | 01:15 | 01:26 | 01:49 | |
| 4 | C4.89 | 2000/09/17 | 20:55 | 21:03 | 21:34 | |
| 5 | C4.77 | 2000/09/18 | 12:19 | 12:31 | 12:42 | |
| 6 | C3.91 | 2000/09/23 | 05:48 | 05:55 | 06:02 | |
| 7 | C3.33 | 2000/09/18 | 02:44 | 02:49 | 02:51 | |
| 8 | C3.11 | 2000/09/20 | 00:21 | 00:27 | 00:46 | |
| 9 | C2.31 | 2000/09/17 | 04:46 | 04:49 | 04:54 |
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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 | 175.4 +83.6 |
| Last 30 days | 107.3 +14.6 |