From the photographer: “It’s very difficult to see the Northern lights from China. It’s almost a dream of mine for 10 years. The CME (Coronal Mass Ejections) hit Earth’s magnetic field on April 23rd at 1737 UT, sparking a severe G4-class geomagnetic storm, KP=8 aurora. It offers me a chance to chase aurora at Karamay, Xinjiang, 46 degrees north.”

A note by TWAN Canadian member and aurora expert, Alan Dyer: “The image shows the tops of the curtains glowing in oxygen reds. But the arc above the main glow is what looks like a classic SAR – a Stable Auroral Red arc, usually sub-visual. It normally resides equatorward of the main auroral oval. It can be accompanied by green pulsating blobs of proton auroras which were seen in Europe on that night. But no sign of them here in Alberta. But we had a superb all-sky show of curtains and bands.



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