Sunspot region AR10917
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2006/10/20 | 4 | 30 | BXO | S05W04 | |
| 2006/10/21 | 5 | 30 | BXO | S05W20 | |
| 2006/10/22 | 6 | 70 | CSO | S05W33 | |
| 2006/10/23 | 8 | 200 | DAC | S05W46 | |
| 2006/10/24 | 24 | 160 | DAI | S05W60 | |
| 2006/10/25 | 13 | 140 | CAO | S05W73 | |
| 2006/10/26 | 5 | 100 | CAO | S05W86 |
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
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/28 | M1.3 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 85.2 +7 |
| Last 30 days | 85.2 +8.6 |
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