As of January 2016 the brightest supernova reported was ASSN SN 15lh. It had an absolute magnitude of - 23.5. For comparison, the absolute magnitude of the Sun is 4.83.
The superlative adjective of bright is brightest
The superlative adjective of bright is brightest
The superlative of bright is brightest.
The brightest stars are a few million times as bright as our Sun.
bright, brighter, brightest
Sei
supernova
The superlative form of the adjective 'light' is lightest.
Hot bright stars do not live very long because they are big (have a lot of mass) and their core density means that they use up their fuel quickly and die young (in supernova explosions). This means you find the hottest brightest stars in star forming regions, stellar nurseries.
brighter, brightest
supernova
Our sun is not the brightest star in the universe. It only appears brighter because it is much close than any other star. The brightest star as it appears in the sky is Sirius.