Sunspot region AR13740
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/07/06 | 4 | 10 | BXO | S20W03 | |
| 2024/07/07 | 2 | 20 | CRO | S18W18 | |
| 2024/07/08 | 3 | 10 | BXO | S17W33 | |
| 2024/07/09 | 2 | 10 | BXO | S18W46 | |
| 2024/07/10 | 2 | 10 | AXX | S18W61 | |
| 2024/07/11 | 2 | 10 | BXO | S18W75 |
2024/07/06
2024/07/07
2024/07/08
2024/07/09
2024/07/10
2024/07/11
|
2024/07/06
2024/07/07
2024/07/08
2024/07/09
2024/07/10
2024/07/11
|
| C |
|---|
| 4 |
The top 4 solar flares from sunspot region 13740
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.6 | 2024/07/08 | 14:41 | 14:44 | 14:50 | |
| 2 | C4.6 | 2024/07/12 | 12:10 | 12:13 | 12:20 | |
| 3 | C4.2 | 2024/07/08 | 11:05 | 11:13 | 11:17 | |
| 4 | C4.2 | 2024/07/08 | 11:29 | 11:33 | 11:37 |
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Latest forum messages
CMes from ar 4392 (19-21st of march) 50Incoming & Unnumbered Active Regions 225AR4392 (including CMEs) 120CH 31 HSS 26Filaments and prominences 516
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/18 | M2.7 |
| Last geomagnetic storm | 2026/03/14 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 80.1 +1.9 |
| Last 30 days | 62.9 -47.9 |