Sunspot region AR13430
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2023/09/10 | 4 | 10 | BXO | S16E09 | |
| 2023/09/11 | 7 | 30 | CRO | S16W07 | |
| 2023/09/12 | 7 | 30 | DRO | S17W19 | |
| 2023/09/13 | 10 | 50 | DAO | S16W33 | |
| 2023/09/14 | 10 | 50 | DSO | S17W47 | |
| 2023/09/15 | 5 | 30 | CSO | S17W61 | |
| 2023/09/16 | 1 | 30 | HRX | S16W73 | |
| 2023/09/17 | 1 | 10 | AXX | S17W88 |
2023/09/10
2023/09/11
2023/09/12
2023/09/13
2023/09/14
2023/09/15
2023/09/16
2023/09/17
|
2023/09/10
2023/09/11
2023/09/12
2023/09/13
2023/09/14
2023/09/15
2023/09/16
2023/09/17
|
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 13430
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.5 | 2023/09/18 | 00:56 | 01:04 | 01:09 |
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
Filaments and prominences 549Identify Shearing with SDO 3Incoming & Unnumbered Active Regions 275Coronal Holes 42/44 91AR potential 4420 (not officially named yet) 4
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| 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 | 79.3 -6.7 |
| Last 30 days | 92.4 +29.5 |
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