Original sentence: 100,000,000.9000 BC.SN 2005B.year (number)
Edited sentence: 10,000 to 9000 BC.Announced in 2007 to be the brightest supernova till then.First supernova to be observed while it exploded.Notable for having characteristics of both Type Ia and Type IIn.SN 1054.SN 1181.SN 1572.SN 1604.SN 185.SN 1885A.SN 1940B.SN 1983N.SN 1986J.SN 1987A.SN 1993J.SN 386.SN 393.Supernova designation (year)