Declination distribution of Supernovae.

This graph shows the distribution of SNe according to the declination of their parent galaxies. Four Intergalactic Supernovae are not considered as it's impossible to establish a correct declination. This graph is kept up to date till SN 2000ek Along X-axis there are all declination bands so that you have to read in this way: for example, the band on the graph marked as 50 takes in all parent galaxies' declinations between +40° and +50°, or if one prefers ...until +50°, and so on...