Sunspot region AR8559
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/05/29 | 4 | 300 | HKX | N21E13 | |
| 1999/05/30 | 3 | 250 | HKX | N20E03 | |
| 1999/05/31 | 7 | 330 | DKO | N21W08 | |
| 1999/06/01 | 1 | 260 | HSX | N20W23 | |
| 1999/06/02 | 3 | 170 | HHX | N19W33 | |
| 1999/06/03 | 2 | 240 | CHO | N22W50 | |
| 1999/06/04 | 1 | 250 | HHX | N21W63 | |
| 1999/06/05 | 1 | 160 | HSX | N21W76 | |
| 1999/06/06 | 1 | 100 | HSX | N21W90 |
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What makes AR3684 magnetically distinct from AR3685? 5Filaments and prominences 127Unproven 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 |