Sunspot region AR13442
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2023/09/20 | 5 | 50 | CSI | S11E52 | |
| 2023/09/21 | 7 | 30 | CSI | S11E39 | |
| 2023/09/22 | 1 | 30 | HSX | S25E36 | |
| 2023/09/23 | 1 | 30 | HSX | S09E11 | |
| 2023/09/24 | 1 | 20 | HRX | S08W00 | |
| 2023/09/25 | 1 | 20 | HAX | S09W14 | |
| 2023/09/26 | 1 | 20 | HRX | S09W27 | |
| 2023/09/27 | 1 | 5 | AXX | S09W42 |
2023/09/20
2023/09/21
2023/09/22
2023/09/23
2023/09/24
2023/09/25
2023/09/26
2023/09/27
|
2023/09/20
2023/09/21
2023/09/22
2023/09/23
2023/09/24
2023/09/25
2023/09/26
2023/09/27
|
| C |
|---|
| 3 |
The top 3 solar flares from sunspot region 13442
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.7 | 2023/09/20 | 21:27 | 21:38 | 21:48 | |
| 2 | C4.2 | 2023/09/20 | 17:34 | 18:02 | 18:24 | |
| 3 | C2.2 | 2023/09/21 | 01:32 | 01:43 | 02:06 |
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
AR4392 (including CMEs) 123CMes from ar 4392 (19-21st of march) 245Filaments and prominences 522AR4400 15AR4401 3
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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 | 2026/03/21 | Kp7 (G3) |
| 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 | 76.1 -2.1 |
| Last 30 days | 67.8 -25 |