| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2004/10/09 | 5 | 80 | DAO | N15W83 | |
| 2004/10/10 | 3 | 90 | CSO | N15W93 |
| B | C |
|---|---|
| 7 | 6 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.89 | 2004/10/10 | 03:21 | 03:28 | 03:34 | |
| 2 | C1.8 | 2004/10/09 | 20:32 | 20:44 | 20:55 | |
| 3 | C1.6 | 2004/10/09 | 19:07 | 19:13 | 19:17 | |
| 4 | C1.25 | 2004/10/10 | 06:41 | 06:49 | 06:56 | |
| 5 | C1.18 | 2004/10/09 | 10:47 | 10:52 | 10:59 | |
| 6 | C1.15 | 2004/10/09 | 15:46 | 15:55 | 16:03 | |
| 7 | B9.25 | 2004/10/09 | 21:37 | 21:43 | 21:47 | |
| 8 | B7.78 | 2004/10/09 | 14:41 | 14:49 | 15:04 | |
| 9 | B7.17 | 2004/10/09 | 16:58 | 17:05 | 17:08 | |
| 10 | B7.01 | 2004/10/09 | 16:16 | 16:19 | 16:25 |
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| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/04 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 121 +35.1 |
| Last 30 days | 101.1 +44.7 |