Sunspot region AR9728
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/12/05 | 3 | 20 | DSO | N36W07 | |
| 2001/12/06 | 9 | 60 | DSO | N36W20 | |
| 2001/12/07 | 9 | 100 | DAO | N35W34 | |
| 2001/12/08 | 5 | 110 | EAO | N36W47 | |
| 2001/12/09 | 4 | 70 | ESO | N36W60 | |
| 2001/12/10 | 5 | 50 | ESO | N35W71 | |
| 2001/12/11 | 1 | 20 | HSX | N35W90 |
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Latest forum messages
Late 2026/04/01 Filament CME 86AR4405 239AR4409 129Space Weather Memes 814Comet C/2026 A1 (MAPS) for the southern hemisphere 38
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/04 | M7.6 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 133.3 +47.4 |
| Last 30 days | 96.1 +32 |
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