Sunspot region AR9905
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/04/11 | 4 | 40 | CSO | S17E04 | |
| 2002/04/12 | 7 | 40 | CAO | S15W13 | |
| 2002/04/13 | 12 | 50 | DAO | S15W25 | |
| 2002/04/14 | 6 | 60 | DAO | S15W41 | |
| 2002/04/15 | 4 | 60 | DSO | S14W55 | |
| 2002/04/16 | 8 | 110 | DSO | S14W69 | |
| 2002/04/17 | 3 | 50 | DRO | S15W83 |
| C | M |
|---|---|
| 5 | 1 |
The top 6 solar flares from sunspot region 9905
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.42 | 2002/04/17 | 00:35 | 00:40 | 00:43 | |
| 2 | C9.86 | 2002/04/17 | 13:37 | 13:42 | 13:48 | |
| 3 | C4.37 | 2002/04/15 | 17:22 | 17:36 | 18:01 | |
| 4 | C4.32 | 2002/04/18 | 15:12 | 16:12 | 16:57 | |
| 5 | C3.38 | 2002/04/17 | 02:32 | 02:37 | 02:41 | |
| 6 | C2.65 | 2002/04/17 | 06:52 | 06:55 | 06:58 |
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/25 | M2.4 |
| Last geomagnetic storm | 2026/02/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (5%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 76.8 -35.8 |
| Last 30 days | 83.1 -38 |