Aurora Alert During The Nights Ahead

Jens Lönn writes: "Magnetic fields above sunspot 9653 erupted yesterday (Oct. 9th at 1110 UT) and hurled a full-halo coronal mass ejection toward Earth. The expanding cloud, which speed away from the Sun traveling approximately 1000 km/s, could strike our planet's magnetosphere as soon as Thursday, Oct. 11th. Sky watchers, especially those living above geomagnetic latitude 50 degrees, should remain alert for Northern Lights during the nights ahead. The best time to spot auroras is usually around local midnight. Note: This is not an alert for a geomagnetic storm, it's just an alert for those who wants to watch great auroras at night."