This image is 10 shots together from 13th-14th of April 2015
We are loosing darkness everyday by 7min.
Astronomical sunset it's 1:38 and astronomical sunrise is 2:23. But we can see Sunlit Aurora. When N+2 is exciting by photoelectron and ionizing by impact of photons you can observe blue, purplish..colors. Perfect size is 10X30 or 20X60
AlaskaAuroraAurora Borealis FairbanksGreen North AmericaNorthern HemisphereNorthern LightsUSAatmospherecelestialcolorfulcoronadarkelectromagneticgeomagnetic stormheartinteriorlovenightnight Skyphenomenonphotopicturepinkredskystar
From Aurora by Marketa