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
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
Latest forum messages
AR4048 87Unspecified geomagnetic activity 2187Temporary Topic - Ongoing Solar Proton Events 8AR4046 153AR4049 3
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M2.4 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| April 2025 | 147 -7.6 |
| Last 30 days | 128.8 -21.8 |