…continuedSupernovae, Neutrinos, and Amateur Astronomers
ν and You
Except for SN 1987A in the Large Magellanic Cloud, no star has been observed before it blew up. As bad luck would have it, SN 1987A's progenitor (called Sanduleak 69°202) was an oddball for a Type II supernova; it was a blue (not red) supergiant and relatively lightweight (six solar masses instead of eight or more). We will probably not see another one like it "for centuries," says Stanford Woosley (University of California, Santa Cruz).