: Sometimes, purple appears at extremely high altitudes (above 180 miles) when nitrogen ions are struck by sunlight near twilight, a phenomenon known as sunlit aurora . Cultural & Spiritual Meanings
: These colors form in the denser parts of the upper atmosphere, below 60 miles, where nitrogen is more abundant than oxygen.
: Unlike the common green aurora caused by oxygen, purple and blue hues are produced by ionized nitrogen .
: Sometimes, purple appears at extremely high altitudes (above 180 miles) when nitrogen ions are struck by sunlight near twilight, a phenomenon known as sunlit aurora . Cultural & Spiritual Meanings
: These colors form in the denser parts of the upper atmosphere, below 60 miles, where nitrogen is more abundant than oxygen. 1024x768 purple northern lights wallpaper | Nor...
: Unlike the common green aurora caused by oxygen, purple and blue hues are produced by ionized nitrogen . : Sometimes, purple appears at extremely high altitudes
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