| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2020/12/20 | 1 | 120 | HSX | S17E78 | |
| 2020/12/21 | 1 | 170 | HSX | S17E64 | |
| 2020/12/22 | 1 | 170 | HSX | S16E54 | |
| 2020/12/23 | 1 | 180 | HSX | S16E39 | |
| 2020/12/24 | 1 | 150 | HSX | S17E27 | |
| 2020/12/25 | 1 | 220 | HSX | S16E14 | |
| 2020/12/26 | 1 | 210 | HSX | S16E01 | |
| 2020/12/27 | 1 | 210 | HSX | S16W12 | |
| 2020/12/28 | 1 | 180 | HSX | S16W26 | |
| 2020/12/29 | 1 | 180 | HSX | S17W38 | |
| 2020/12/30 | 1 | 170 | HSX | S15W51 | |
| 2020/12/31 | 1 | 180 | HSX | S16W64 | |
| 2021/01/01 | 1 | 180 | HSX | S16W80 | |
| 2021/01/02 | 1 | 120 | HSX | S16W93 | |
| 2021/01/03 | 1 | 120 | HSX | S16W0* |
| B |
|---|
| 3 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B2.4 | 2020/12/25 | 04:30 | 04:50 | 05:13 | |
| 2 | B2.4 | 2020/12/30 | 10:02 | 10:15 | 10:23 | |
| 3 | B2.1 | 2020/12/30 | 10:29 | 10:34 | 10:36 |
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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 |