[PAR] [TLE] Supernova [SEP] A supernova plural: supernovae or supernovas, abbreviations: SN and SNe) is an astronomical event that occurs during the last stellar evolutionary stages of a massive star's life, whose dramatic and catastrophic destruction is marked by one final titanic explosion.  This causes the sudden appearance of a "new" bright star, before slowly fading from sight over several weeks or months. [PAR] [TLE] NGC 1808 [SEP] NGC 1808 is a Seyfert galaxy located in the constellation Columba.  The Supernova 1993af appeared in NGC 1808.
[PAR] [TLE] Supernova [ SEP ] A supernova plural : supernovae or supernovas , abbreviations : SN and SNe ) is an astronomical event that occurs during the last stellar evolutionary stages of a massive star 's life , whose dramatic and catastrophic destruction is marked by one final titanic explosion . This causes the sudden appearance of a " new " bright star , before slowly fading from sight over several weeks or months . [PAR] [TLE] NGC 1808 [ SEP ] NGC 1808 is a Seyfert galaxy located in the constellation Columba . The Supernova 1993af appeared in NGC 1808 .
NGC 1808 is a Seyfert galaxy located in the constellation Columba, The which astronomical event that occurs during the last stellar evolutionary stages of a massive star's life, whose dramatic and catastrophic destruction is marked by one final titanic explosion, 1993af appeared in NGC 1808?
NGC 1808 is a Seyfert galaxy located in the constellation Columba , The which astronomical event that occurs during the last stellar evolutionary stages of a massive star 's life , whose dramatic and catastrophic destruction is marked by one final titanic explosion , 1993af appeared in NGC 1808 ?
Supernova
Supernova