| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2004/07/15 | 4 | 10 | BXO | S16E44 | |
| 2004/07/16 | 12 | 10 | BXO | S16E29 | |
| 2004/07/17 | 11 | 10 | BXO | S16E14 | |
| 2004/07/18 | 5 | 10 | BXO | S16E01 | |
| 2004/07/19 | 5 | 10 | BXO | S16W10 | |
| 2004/07/20 | 6 | 10 | BXO | S16W23 | |
| 2004/07/21 | 3 | 0 | BXO | S16W37 | |
| 2004/07/22 | 2 | 10 | BXO | S16W48 |
| C |
|---|
| 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C3.64 | 2004/07/15 | 11:11 | 11:16 | 11:19 |
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| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/25 | M2.4 |
| Last geomagnetic storm | 2026/03/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (5%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 75 -3.2 |
| Last 30 days | 59.2 -65.5 |