Coronal holes Help
On this page you will find all the information you need to spot any coronal holes on the earth-facing solar disk. Coronal holes are the source of fast solar wind streams which sometimes have the potential to produce minor to moderate geomagnetic storms. If our automated detection system recently detected an earth-facing coronal hole it will also be mentioned on this page.
A southern hemisphere coronal hole was detected in an earth-facing position on Thursday, 16 January 2025
SDO/AIA 193
SDO/AIA 211
Coronal hole detection map
Latest news
Thursday, 16 January 2025
Coronal hole faces Earth
Saturday, 4 January 2025
Sunspot region 3947, X-class solar flares
Monday, 30 December 2024
Two earth-directed coronal mass ejections
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| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/01/18 | M1.1 |
| Last geomagnetic storm | 2025/01/04 | Kp5 (G1) |
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