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
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
AR4409 109AR4403 39Late 2026/04/01 Filament CME 54GoPro tips -which model, what settings etc 7Unspecified geomagnetic activity 137
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/03 | M1.3 |
| Last geomagnetic storm | 2026/04/02 | Kp6- (G2) |
| 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 | 141 +55.1 |
| Last 30 days | 94.6 +27 |
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