Sunspot region AR13866
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/10/21 | 6 | 30 | CAI | S08E58 | |
| 2024/10/22 | 11 | 40 | CAO | S03E45 | |
| 2024/10/23 | 11 | 20 | BXI | S12E31 | |
| 2024/10/24 | 7 | 10 | BXO | S06E21 | |
| 2024/10/25 | 3 | 10 | BXO | S11E06 | |
| 2024/10/26 | 2 | 10 | BXO | S12W08 | |
| 2024/10/27 | 2 | 10 | BXO | S12W22 | |
| 2024/10/28 | 4 | 10 | BXO | S12W36 | |
| 2024/10/29 | 4 | 10 | BXO | S12W50 |
2024/10/21
2024/10/22
2024/10/23
2024/10/24
2024/10/25
2024/10/26
2024/10/27
2024/10/28
2024/10/29
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2024/10/21
2024/10/22
2024/10/23
2024/10/24
2024/10/25
2024/10/26
2024/10/27
2024/10/28
2024/10/29
|
| C |
|---|
| 3 |
The top 3 solar flares from sunspot region 13866
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.5 | 2024/10/23 | 11:11 | 11:20 | 11:26 | |
| 2 | C3.5 | 2024/10/23 | 10:19 | 10:22 | 10:28 | |
| 3 | C2.8 | 2024/10/25 | 06:52 | 06:59 | 07:05 |
Latest news
Friday, 14 November 2025
X4.0 solar flare
Tuesday, 11 November 2025
X5.1 solar flare, G4 geomagnetic storm watch
Monday, 10 November 2025
X1.2 solar flare with earth-directed CME
Latest forum messages
Sunspot region 4274 822Space Weather Memes 754Incoming & Unnumbered Active Regions 2163Unspecified geomagnetic activity 3303Space Weather Analyst 11
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Space weather facts
| Last X-flare | 2025/11/14 | X4.0 |
| Last M-flare | 2025/11/16 | M3.1 |
| Last geomagnetic storm | 2025/11/13 | Kp7+ (G3) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2025 | 114.6 -15.2 |
| November 2025 | 95.6 -19 |
| Last 30 days | 93.4 -40.6 |