Sunspot region AR8721
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/10/04 | 6 | 50 | CSO | S17E56 | |
| 1999/10/05 | 12 | 100 | EAO | S19E46 | |
| 1999/10/06 | 7 | 110 | EAO | S18E34 | |
| 1999/10/07 | 7 | 60 | DAO | S19E20 | |
| 1999/10/08 | 6 | 70 | DSO | S19E05 | |
| 1999/10/09 | 3 | 40 | CAO | S17W12 | |
| 1999/10/10 | 7 | 30 | CSO | S17W24 | |
| 1999/10/11 | 2 | 10 | HRX | S17W37 | |
| 1999/10/12 | 1 | 10 | HRX | S16W50 | |
| 1999/10/13 | 1 | 0 | AXX | S15W64 |
Latest news
Thursday, 16 January 2025
Coronal hole faces Earth
Saturday, 4 January 2025
Sunspot region 3947, X-class solar flares
Monday, 30 December 2024
Two earth-directed coronal mass ejections
Latest forum messages
Unexplained proton activity 4701/21/2025 AR 3967 M3.3 CME 3Filaments and prominences 624Strong far side CME 369Comet C/2024 G3 (ATLAS) in LASCO C3 27
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Space weather facts
| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/01/22 | M1.3 |
| 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 |
| January 2025 | 145.2 -9.3 |
| Last 30 days | 162 +43.1 |