| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2026/05/23 | 2 | 170 | DAO | S15E70 | |
| 2026/05/24 | 3 | 280 | DKO | S13E59 | |
| 2026/05/25 | 3 | 220 | HAX | S13E46 | |
| 2026/05/26 | 16 | 400 | FHO | S13E32 | |
| 2026/05/27 | 17 | 400 | FKO | S16E29 | |
| 2026/05/28 | 12 | 300 | FKO | S14E05 | |
| 2026/05/29 | 13 | 290 | CKO | S16W03 | |
| 2026/05/30 | 8 | 250 | CHO | S15W21 | |
| 2026/05/31 | 8 | 250 | CHO | S15W35 | |
| 2026/06/01 | 5 | 180 | CSO | S14W50 | |
| 2026/06/02 | 2 | 130 | CSO | S15W62 | |
| 2026/06/03 | 4 | 130 | CSO | S13W76 | |
| 2026/06/04 | 3 | 130 | CSO | S14W88 | |
| 2026/06/05 | 3 | 130 | CSO | S14W0* |
| B | C |
|---|---|
| 2 | 20 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C9.7 | 2026/05/26 | 12:30 | 12:38 | 12:44 | |
| 2 | C5.5 | 2026/05/23 | 21:57 | 22:04 | 22:07 | |
| 3 | C4.7 | 2026/05/23 | 23:43 | 23:59 | 00:11 | |
| 4 | C4.7 | 2026/05/26 | 23:39 | 23:49 | 23:52 | |
| 5 | C4.7 | 2026/05/30 | 11:45 | 11:53 | 11:55 | |
| 6 | C3.7 | 2026/05/24 | 02:33 | 02:37 | 02:40 | |
| 7 | C3.5 | 2026/05/24 | 00:48 | 01:04 | 01:08 | |
| 8 | C3.4 | 2026/05/24 | 02:18 | 02:25 | 02:30 | |
| 9 | C3.4 | 2026/05/27 | 12:07 | 12:16 | 12:19 | |
| 10 | C2.9 | 2026/05/23 | 21:00 | 21:05 | 21:12 |
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| Last X-flare | 2026/06/03 | X1.0 |
| Last M-flare | 2026/06/06 | M1.8 |
| Last geomagnetic storm | 2026/06/05 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| May 2026 | 101.4 +22.1 |
| June 2026 | 144.4 +43 |
| Last 30 days | 101.7 +9.9 |