2022-11-23, 08:40 PM
well given S And in M31 reached about 6 one would assume the same kind of range. SN1997A was naked eye when it was discovered. It will still a binocular object when I saw it later in the year.. However given M33 one would expect some variant of a Type II SN from a core collapse object. SN 1987A was a core collapse SN from a blue supergiant so one would assume Type II or one of the Ib or Ic classes. A search suggests a peculiar Type II

