| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2026/04/13 | 1 | 30 | HAX | N12E66 | |
| 2026/04/14 | 12 | 100 | CSI | N13E57 | |
| 2026/04/15 | 17 | 260 | EKI | N13E44 | |
| 2026/04/16 | 23 | 280 | EKI | N13E29 | |
| 2026/04/17 | 16 | 360 | EKI | N13E15 | |
| 2026/04/18 | 12 | 270 | EHO | N13E01 | |
| 2026/04/19 | 14 | 240 | EAO | N14W12 | |
| 2026/04/20 | 25 | 260 | EHO | N15W25 | |
| 2026/04/21 | 14 | 250 | EHO | N14W38 | |
| 2026/04/22 | 10 | 220 | EAO | N15W51 | |
| 2026/04/23 | 7 | 220 | ESO | N15W64 | |
| 2026/04/24 | 7 | 230 | ESO | N15W77 | |
| 2026/04/25 | 2 | 60 | DSO | N17W93 | |
| 2026/04/26 | 2 | 60 | DSO | N17W0* |
| B | C | M | X |
|---|---|---|---|
| 33 | 8 | 5 | 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | X2.5 | 2026/04/24 | 00:51 | 01:07 | 01:13 | |
| 2 | X2.5 | 2026/04/24 | 08:01 | 08:14 | 08:18 | |
| 3 | M6.41 | 2026/04/24 | 17:53 | 18:15 | 18:30 | |
| 4 | M4.95 | 2026/04/23 | 17:00 | 17:08 | 17:14 | |
| 5 | M4.33 | 2026/04/23 | 08:40 | 08:48 | 08:53 | |
| 6 | M1.71 | 2026/04/23 | 13:41 | 14:00 | 14:11 | |
| 7 | M1.65 | 2026/04/23 | 04:24 | 04:35 | 04:48 | |
| 8 | C4.1 | 2026/04/17 | 04:26 | 04:42 | 05:02 | |
| 9 | C3.9 | 2026/04/25 | 13:08 | 13:20 | 13:28 | |
| 10 | C3.1 | 2026/04/24 | 05:22 | 05:30 | 05:43 |
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| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/04/28 | M1.11 |
| Last geomagnetic storm | 2026/04/20 | Kp5 (G1) |
| 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 | 158 +78.7 |
| Last 30 days | 90.5 -3.1 |