supernova impostor

== English == === Etymology === From being mistaken for a supernova. === Pronunciation === Rhymes: -ɒstə(ɹ) === Noun === supernova impostor (plural supernova impostors) (astronomy) An extremely energetic stellar flare event that is bright enough to be mistaken for a supernova, but through later spectral analysis is revealed to not be one. ==== Coordinate terms ==== failed supernova supernova hypernova nova