| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2018/01/16 | 2 | 20 | BXO | S11E25 | |
| 2018/01/17 | 3 | 30 | CRO | S13E12 | |
| 2018/01/18 | 2 | 20 | BXO | S13W02 | |
| 2018/01/19 | 2 | 10 | BXO | S12W15 | |
| 2018/01/20 | 1 | 10 | AXX | S12W29 |
| A | B | C |
|---|---|---|
| 1 | 3 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.34 | 2018/01/22 | 02:37 | 02:57 | 03:20 | |
| 2 | B5.5 | 2018/01/18 | 08:08 | 08:13 | 08:16 | |
| 3 | B2.11 | 2018/01/20 | 04:48 | 04:55 | 05:00 | |
| 4 | B1.4 | 2018/01/18 | 09:51 | 09:57 | 10:06 | |
| 5 | A7.32 | 2018/01/20 | 17:42 | 17:52 | 17:58 |
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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 |