Sunspot region AR13855
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/10/13 | 4 | 20 | CSO | N14W33 | |
| 2024/10/14 | 6 | 20 | CRO | N12W49 | |
| 2024/10/15 | 6 | 20 | CRO | N16W62 | |
| 2024/10/16 | 6 | 20 | CRO | N16W76 | |
| 2024/10/17 | 3 | 20 | CRO | N15W90 | |
| 2024/10/18 | 3 | 20 | CRO | N15W0* |
2024/10/13
2024/10/14
2024/10/15
2024/10/16
2024/10/17
2024/10/18
|
2024/10/13
2024/10/14
2024/10/15
2024/10/16
2024/10/17
2024/10/18
|
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 13855
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C3.8 | 2024/10/17 | 05:40 | 05:46 | 06:00 |
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
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/23 | M4.9 |
| 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 | 78.1 -7.8 |
| Last 30 days | 89.4 +15.6 |
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