Sunspot region AR9431
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/04/18 | 2 | 10 | AXX | S10E49 | |
| 2001/04/19 | 1 | 0 | AXX | S11E36 | |
| 2001/04/21 | 4 | 30 | CSO | S12E15 | |
| 2001/04/22 | 8 | 130 | DAO | S11E00 | |
| 2001/04/23 | 7 | 60 | DAO | S11W15 | |
| 2001/04/24 | 2 | 20 | HAX | S11W29 | |
| 2001/04/25 | 2 | 20 | HSX | S10W44 | |
| 2001/04/26 | 2 | 20 | HSX | S12W57 | |
| 2001/04/27 | 1 | 10 | AXX | S11W71 | |
| 2001/04/28 | 1 | 0 | AXX | S10W85 |
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 9431
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.11 | 2001/04/23 | 12:06 | 12:23 | 12:36 |
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
AR4366 737X8 CME 1750 mhz F2 81Space Weather Memes 784Do the high-resolution sunspot counts point to more complex sunspots? 48
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Space weather facts
| Last X-flare | 2026/02/03 | X1.5 |
| Last M-flare | 2026/02/03 | M3.4 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 133 +9 |
| Last 30 days | 120.6 +10.9 |