Sunspot region AR13903
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/11/21 | 6 | 20 | CAI | S10W17 | |
| 2024/11/22 | 6 | 50 | DAO | S10W31 | |
| 2024/11/23 | 5 | 40 | DAO | S10W44 | |
| 2024/11/24 | 5 | 30 | DAO | S11W59 | |
| 2024/11/25 | 4 | 30 | DAO | S10W75 | |
| 2024/11/26 | 4 | 30 | DAO | S10W88 | |
| 2024/11/27 | 4 | 30 | DAO | S10W0* |
2024/11/21
2024/11/22
2024/11/23
2024/11/24
2024/11/25
2024/11/26
|
2024/11/21
2024/11/22
2024/11/23
2024/11/24
2024/11/25
2024/11/26
|
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 13903
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.3 | 2024/11/26 | 00:01 | 00:08 | 00:12 |
Latest news
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
Tuesday, 11 November 2025
X5.1 solar flare, G4 geomagnetic storm watch
Latest forum messages
Growth of Cycle 25 973AR4294 / 4296 / 4298 319Filaments and prominences 408Changelog/Featurelog 176Incoming & Unnumbered Active Regions 17
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 175.4 +83.6 |
| Last 30 days | 107.3 +14.6 |