LRN
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English
[edit]Noun
[edit]LRN (plural LRNe)
- (astronomy) Initialism of luminous red nova: an astronomical event, believed to be a type of stellar explosion, intermediate in power between a nova and a supernova, and such that as the explosive debris expands it reddens and cools, unlike a nova or supernova, in which thinning explosive debris exposes hotter interior layers.