Sunspot region AR8555
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/05/27 | 1 | 50 | HSX | N16E75 | |
| 1999/05/28 | 1 | 60 | HAX | N15E61 | |
| 1999/05/29 | 1 | 50 | HSX | N17E49 | |
| 1999/05/30 | 1 | 50 | HSX | N17E35 | |
| 1999/05/31 | 1 | 50 | HSX | N16E22 | |
| 1999/06/01 | 3 | 40 | CSO | N17E08 | |
| 1999/06/02 | 3 | 40 | CSO | N17W06 | |
| 1999/06/03 | 4 | 40 | CAO | N16W18 | |
| 1999/06/04 | 1 | 30 | HSX | N16W30 | |
| 1999/06/05 | 1 | 20 | HSX | N15W44 | |
| 1999/06/06 | 1 | 10 | AXX | N16W57 |
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AR 3976 / AR 3977 / AR 3978 81Strong far side CME 380Something huge fell on the Sun today 8Filaments and prominences 664AR 3981 1
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Space weather facts
| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/02/02 | M1.4 |
| Last geomagnetic storm | 2025/01/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2024 | 154.5 +2 |
| February 2025 | 145 -9.5 |
| Last 30 days | 143.6 +3.8 |