| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2026/05/04 | 1 | 30 | HSX | N23E64 | |
| 2026/05/05 | 1 | 40 | HSX | N23E50 | |
| 2026/05/06 | 1 | 40 | HSX | N24E37 | |
| 2026/05/07 | 1 | 60 | HSX | N22E23 | |
| 2026/05/08 | 1 | 60 | HSX | N23E10 | |
| 2026/05/09 | 1 | 50 | HSX | N24W01 | |
| 2026/05/10 | 1 | 40 | HSX | N23W16 | |
| 2026/05/11 | 1 | 40 | HSX | N23W29 | |
| 2026/05/12 | 1 | 40 | HSX | N23W42 | |
| 2026/05/13 | 3 | 50 | CSO | N23W55 | |
| 2026/05/14 | 7 | 50 | DRI | N21W66 | |
| 2026/05/15 | 5 | 70 | DAO | N22W81 | |
| 2026/05/16 | 5 | 70 | DAO | N22W95 | |
| 2026/05/17 | 5 | 70 | DAO | N22W0* |
| B | C | M |
|---|---|---|
| 2 | 18 | 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.9 | 2026/05/16 | 17:39 | 17:42 | 17:44 | |
| 2 | M1.4 | 2026/05/17 | 03:29 | 03:39 | 03:42 | |
| 3 | C9.6 | 2026/05/15 | 16:05 | 16:14 | 16:18 | |
| 4 | C6.7 | 2026/05/15 | 13:10 | 13:13 | 13:17 | |
| 5 | C5.8 | 2026/05/16 | 23:13 | 23:30 | 23:38 | |
| 6 | C5.5 | 2026/05/14 | 06:31 | 06:42 | 06:49 | |
| 7 | C4.3 | 2026/05/15 | 11:43 | 11:50 | 11:54 | |
| 8 | C3.8 | 2026/05/14 | 11:26 | 11:36 | 11:45 | |
| 9 | C3.4 | 2026/05/16 | 15:08 | 15:12 | 15:16 | |
| 10 | C3.4 | 2026/05/16 | 19:57 | 20:03 | 20:09 |
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| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/05/17 | M1.4 |
| Last geomagnetic storm | 2026/05/16 | Kp6- (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2026 | 79.3 -6.6 |
| May 2026 | 92.2 +12.9 |
| Last 30 days | 97 +6.4 |