Sunspot region AR10660
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2004/08/12 | 4 | 20 | CRO | S08E62 | |
| 2004/08/13 | 4 | 50 | DSO | S07E48 | |
| 2004/08/14 | 2 | 40 | CAO | S07E35 | |
| 2004/08/15 | 1 | 30 | HSX | S07E17 | |
| 2004/08/16 | 1 | 10 | HSX | S07E04 | |
| 2004/08/17 | 1 | 10 | HRX | S07W10 | |
| 2004/08/18 | 1 | 10 | AXX | S08W24 |
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Filaments and prominences 126What makes AR3684 magnetically distinct from AR3685? 4Unproven theories 481AR3664 1072AR3685 53
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Space weather facts
| Last X-flare | 2024/05/15 | X2.9 |
| Last M-flare | 2024/05/17 | M7.1 |
| Last geomagnetic storm | 2024/05/17 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| May 2024 | 157.2 +20.7 |
| Last 30 days | 171.9 +57.9 |