Zwicky defined extra supernovae types based upon a hardly any illustrations that did not cleanly in shape the parameters for Variety I or Sort II supernovae. SN 1961i in NGC 4303 was the prototype and only member of the Type III supernova class, famous for its broad gentle curve optimum https://hbs-case-study-help15555.blogdanica.com/35793565/a-simple-key-for-hbr-case-study-assignment-help-unveiled