lørdag 11. februar 2012

a night on a beach with aurora


Here in Lofoten aurora shows her mysterious presence at clear, cold night. But you need to keep your eyes open for her, she can be shy but ones she gets out she can overwhelm you with her beauty. Aurora borealis (northern lights), are named after the Roman goddess of dawn, Aurora, and the Greek name for the north wind, Boreas, by Pierre Gassendi in 1621. Auroras Borealis is a phenomena that occurs on the northern hemisphere, they illuminate the northern horizon as a greenish glow or sometimes a faint red, as if the Sun were rising from an unusual direction. The glowing lights that spreads over the night sky are magnetic field lines and can change within seconds or glow unchanging for hours, most often in fluorescent green. The phenomena  can seem like dancing curtains crossing the sky, almost nervous at times, confident and strong at others.  Aurora is caused by the collision of energetic charged particles with atoms in the high altitude atmosphere (thermosphere). The charged particles originate in the magnetosphere and solar wind and, on Earth, are directed by the Earth's magnetic field into the atmosphere. 
These pictures were taken at Rørvikstranda an evening in early february, playing with aurora and the waves. 

Ingen kommentarer:

Legg inn en kommentar