| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/05/21 | 6 | 30 | CAO | S05W56 | |
| 2025/05/22 | 8 | 70 | DAI | S05W72 | |
| 2025/05/23 | 5 | 20 | CRO | S07W84 | |
| 2025/05/24 | 5 | 20 | CRO | S06W99 |
| B | C |
|---|---|
| 5 | 5 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.5 | 2025/05/21 | 18:04 | 18:07 | 18:12 | |
| 2 | C2.5 | 2025/05/22 | 22:32 | 22:41 | 22:48 | |
| 3 | C1.4 | 2025/05/22 | 11:57 | 12:21 | 12:52 | |
| 4 | C1.3 | 2025/05/22 | 17:20 | 17:26 | 17:28 | |
| 5 | C1.2 | 2025/05/22 | 19:23 | 19:29 | 19:46 | |
| 6 | B8.8 | 2025/05/21 | 07:23 | 07:44 | 07:57 | |
| 7 | B8.8 | 2025/05/22 | 14:54 | 15:05 | 15:25 | |
| 8 | B7.9 | 2025/05/21 | 07:04 | 07:13 | 07:23 | |
| 9 | B7.9 | 2025/05/22 | 03:30 | 03:37 | 03:42 | |
| 10 | B7.4 | 2025/05/22 | 00:38 | 00:47 | 01:06 |
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| Last X-flare | 2026/02/02 | X1.6 |
| Last M-flare | 2026/02/02 | M2.5 |
| 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 |
| February 2026 | 114 -10 |
| Last 30 days | 118.1 +6.2 |