| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/01/06 | 5 | 110 | CSO | N19E66 | |
| 2001/01/07 | 5 | 90 | DSO | N19E52 | |
| 2001/01/08 | 5 | 80 | CSO | N20E39 | |
| 2001/01/09 | 3 | 70 | DSO | N18E25 | |
| 2001/01/10 | 2 | 90 | CSO | N18E12 | |
| 2001/01/11 | 8 | 80 | DSO | N18W02 | |
| 2001/01/12 | 7 | 70 | CAO | N18W15 | |
| 2001/01/13 | 6 | 50 | CAO | N19W28 | |
| 2001/01/14 | 3 | 60 | CAO | N19W41 | |
| 2001/01/15 | 4 | 30 | CSO | N19W54 | |
| 2001/01/16 | 2 | 0 | BXO | N19W69 |
| C | M |
|---|---|
| 7 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M5.01 | 2001/01/10 | 10:12 | 10:16 | 10:18 | |
| 2 | C9.73 | 2001/01/05 | 18:23 | 18:51 | 19:22 | |
| 3 | C5.14 | 2001/01/06 | 14:49 | 15:20 | 15:48 | |
| 4 | C4.71 | 2001/01/05 | 07:03 | 07:15 | 07:31 | |
| 5 | C3.6 | 2001/01/10 | 18:00 | 18:06 | 18:09 | |
| 6 | C3.37 | 2001/01/13 | 16:54 | 16:57 | 16:59 | |
| 7 | C2.27 | 2001/01/12 | 00:38 | 00:42 | 00:45 | |
| 8 | C1.77 | 2001/01/13 | 13:53 | 13:56 | 13:58 |
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| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/28 | M1.3 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 84 +5.8 |
| Last 30 days | 84 +6.2 |