Skywatchers at high latitudes should be alert for aurorae tonight .
今晚在高纬度进行观测时要注意极光的带来的伤害。
And while aurorae are normally visible only at high latitudes , they can light up the sky even at lower latitudes during a geomagnetic storm .
虽然极光通常只出现在高纬度地区，但是在磁暴发生时，极光也能点亮稍低纬度地区的天空。
It 's also possible the ashen light of venus is caused by solar particles energizing the atmosphere like the terrestrial aurorae borealis and australis - hence its evanescence .
