As winter finally fades here in the northern latitudes, so do the opportunities to witness displays of the aurora borealis. Spectacular sightings were reported this year, including a seemingly inordinate number of reports of red auroras.
Top photo from a Reddit thread. Below that one from a photoessay at the BBC. The Telegraph has a photo of a similarly red aurora Australis.
The green and red in aurorae are very specific colours since they arise from specific excitation states of atoms. I would say that these bright pink ones has just been tweaked in post-processing until the colour balance is well away from natural.
ReplyDeleteLovely colors. One day I do hope to get far enough north to enjoy that phenomenon.
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