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
Saturday, 11 May 2024
Strongest geomagnetic storm since 2003, X5.8 solar flare
Saturday, 11 May 2024
Extreme G5 geomagnetic storm
Friday, 10 May 2024
Severe G4 geomagnetic storm
Latest forum messages
Unproven theories 410May 2024 Geomagnetic Storms from AR 13664 (2) 97Timing of when Aurorae will peak on May 11th? 1Incoming Active Regions 259Why is SOHO so grainy right now? 1
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Space weather facts
| Last X-flare | 2024/05/11 | X1.5 |
| Last M-flare | 2024/05/12 | M3.2 |
| Last geomagnetic storm | 2024/05/11 | Kp9 (G5) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| May 2024 | 140.5 +4 |
| Last 30 days | 172.8 +81.3 |