A high speed coronal hole solar wind stream arrived at our planet yesterday from a small equatorial coronal hole but it did not produce much geomagnetic activity here on our planet. While the solar wind speed increased to above 500km/s, the north-south direction of the IMF stayed mostly northward and little geomagnetic activity was observed. The Kp-index never increased above Kp2 yesterday. However, we are soon getting another chance for some nice auroral displays as yet another coronal hole faced our planet yesterday.
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Last X-flare | 2025/01/04 | X1.85 |
Last M-flare | 2025/01/09 | M1.1 |
Last geomagnetic storm | 2025/01/04 | Kp5 (G1) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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December 2024 | 154.5 +2 |
January 2025 | 140.8 -13.8 |
Last 30 days | 151.7 +34.3 |