Sunspot region AR10121
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/09/17 | 1 | 50 | HSX | S14E69 | |
| 2002/09/18 | 1 | 60 | HSX | S14E53 | |
| 2002/09/19 | 1 | 50 | HSX | S13E39 | |
| 2002/09/20 | 1 | 40 | HSX | S13E26 | |
| 2002/09/21 | 1 | 50 | HSX | S13E12 | |
| 2002/09/22 | 1 | 50 | HAX | S13W02 | |
| 2002/09/23 | 2 | 40 | HAX | S12W15 | |
| 2002/09/24 | 3 | 30 | HSX | S13W28 | |
| 2002/09/25 | 2 | 20 | HAX | S12W42 | |
| 2002/09/26 | 1 | 20 | HSX | S12W55 |
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 10121
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.37 | 2002/09/21 | 03:12 | 03:20 | 03:26 |
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/16 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 106.5 -6.1 |
| Last 30 days | 124.3 +22.3 |