| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2000/01/12 | 5 | 20 | CSO | S11W20 | |
| 2000/01/13 | 18 | 70 | DAO | S12W33 | |
| 2000/01/14 | 15 | 110 | CSO | S12W46 | |
| 2000/01/15 | 11 | 160 | CAO | S12W58 | |
| 2000/01/16 | 8 | 150 | CAO | S12W70 | |
| 2000/01/17 | 6 | 80 | CAO | S11W84 |
| C |
|---|
| 4 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C9.14 | 2000/01/14 | 17:06 | 17:11 | 17:16 | |
| 2 | C5.73 | 2000/01/15 | 01:55 | 02:00 | 02:05 | |
| 3 | C3.7 | 2000/01/13 | 18:25 | 18:30 | 18:41 | |
| 4 | C2.73 | 2000/01/15 | 10:29 | 10:32 | 10:34 |
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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 | 119.3 -4.7 |
| Last 30 days | 120.3 +3.4 |