On Sept. the sun will cross the celestial equator heading south, marking the end of northern summer. That's good news for high-latitude sky watchers because, for reasons researchers do not fully understand, auroras love equinoxes.
Gorgeous Nightscapes Illuminated by Bright Stars and Galaxies
(solar-storm-fueled auroras)---- "Eagle Lights"---The central light ribbon in this image resembles the head and beak of a bird, flanked by a radiant wingspan. The photo was taken in Grøtfjord, close to Tromsø in northern Norway.
The bright dancing lights of the aurora or the northern lights are actually the result of collisions between gaseous particles in the Earth’s atmosphere with charged particles released from the sun’s atmosphere.