Sunspot region AR12840
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/07/06 | 2 | 10 | BXO | N27W63 | |
| 2021/07/07 | 4 | 10 | BXO | N27W76 | |
| 2021/07/08 | 2 | 10 | BXO | N27W90 | |
| 2021/07/09 | 2 | 10 | BXO | N27W0* |
2021/07/06
2021/07/07
2021/07/08
2021/07/09
|
2021/07/06
2021/07/07
2021/07/08
2021/07/09
|
| B | C |
|---|---|
| 27 | 3 |
The top 10 solar flares from sunspot region 12840
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.0 | 2021/07/09 | 10:31 | 10:50 | 10:58 | |
| 2 | C6.0 | 2021/07/09 | 07:30 | 07:55 | 08:03 | |
| 3 | C4.8 | 2021/07/09 | 17:13 | 17:25 | 17:30 | |
| 4 | B8.4 | 2021/07/09 | 14:47 | 14:57 | 15:03 | |
| 5 | B3.9 | 2021/07/09 | 14:20 | 14:38 | 14:47 | |
| 6 | B3.2 | 2021/07/08 | 22:13 | 22:19 | 22:25 | |
| 7 | B2.9 | 2021/07/10 | 01:56 | 02:06 | 02:10 | |
| 8 | B2.8 | 2021/07/08 | 17:33 | 17:45 | 17:53 | |
| 9 | B2.6 | 2021/07/08 | 19:26 | 19:33 | 19:37 | |
| 10 | B2.3 | 2021/07/08 | 21:57 | 22:01 | 22:07 |
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
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/03 | M1.3 |
| Last geomagnetic storm | 2026/04/02 | Kp6- (G2) |
| 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 | 141 +55.1 |
| Last 30 days | 94.6 +27 |
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