Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
a pattern of differently coloured lights that are sometimes seen in the night sky in the most northern parts of the world
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions
