Sunspot region AR9900
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/04/08 | 14 | 80 | DSO | S29E07 | |
| 2002/04/09 | 20 | 150 | EAI | S29W06 | |
| 2002/04/10 | 20 | 180 | EAI | S29W19 | |
| 2002/04/11 | 18 | 110 | ESI | S28W32 | |
| 2002/04/12 | 13 | 100 | DAO | S28W45 | |
| 2002/04/13 | 14 | 140 | DAO | S28W57 | |
| 2002/04/14 | 10 | 100 | CSO | S29W68 | |
| 2002/04/15 | 3 | 40 | BXO | S28W81 |
| C |
|---|
| 3 |
The top 3 solar flares from sunspot region 9900
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C6.32 | 2002/04/11 | 05:59 | 06:10 | 06:20 | |
| 2 | C5.15 | 2002/04/13 | 10:26 | 10:30 | 10:32 | |
| 3 | C4.71 | 2002/04/10 | 22:25 | 22:42 | 22:55 |
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/09 | M1.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 160.6 +68.8 |
| Last 30 days | 108.7 +12.8 |