Sunspot region AR12831
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/06/07 | 1 | 10 | HRX | N24W83 |
2021/06/07
|
2021/06/07
|
| B | C |
|---|---|
| 3 | 2 |
The top 5 solar flares from sunspot region 12831
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C3.8 | 2021/06/09 | 08:44 | 09:07 | 09:22 | |
| 2 | C1.8 | 2021/06/09 | 11:50 | 11:59 | 12:03 | |
| 3 | B8.8 | 2021/06/09 | 19:27 | 19:48 | 20:04 | |
| 4 | B8.0 | 2021/06/09 | 19:09 | 19:24 | 19:27 | |
| 5 | B4.5 | 2021/06/10 | 09:00 | 09:08 | 09:20 |
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Latest forum messages
CMEs from AR4420 (April 23th - 24th) 29AR4420 89Incoming & Unnumbered Active Regions 289AR4423 5AR4419 123
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/04/24 | M2.0 |
| Last geomagnetic storm | 2026/04/20 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 78.1 -7.8 |
| Last 30 days | 89.4 +15.6 |
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