A history of Supernovae explosions as recorded on the IAU Central Bureau for Astronomical Telegrams (CBAT) between 1985 and November 2013. Note the general increase in the Supernova discovery rate over the ~30 year timespan. Also note the impact of dedicated Supernovae searches, e.g. SDSS 2005-2007, giving rise to occasional very high density stripes across the sky. The background image is made from star counts in the UCAC3 catalogue, and is shown in a Galactic coordinate Mollweide projection. (Courtesy of Sergey Koposov, Institute of Astronomy, Cambridge.)
Page last updated: 30 November 2013