> you would not survive if 1 solar mass of energy were released in any other form (even neutrinos) But it is close! A supernova releases "few times 10^45 J of

> you would not survive if 1 solar mass of energy were released in any other form (even neutrinos) But it is close! A supernova releases "few times 10^45 J of neutrino energy" [1], so let's say 5. 5e45 J is about 6e28 kg, while solar mass is 2e30 kg. And neutron radiation from a supernova would get fatal when closer than about 2.3 AU [2]. So we have a factor of 30 from the masses and a factor of 5 (1^2 AU vs. 2.3^2 AU) from the distance. So about 1/150 of solar mass released in neutron radiation would be survivable at the distance of 1 AU. [1] http://wayback.archive.org/web/20120313045458/http://www.andrewkaram.com/andy/pdf/HPJ.pdf http://wayback.archive.org/web/20120313045458/http://www.and... [2] https://what-if.xkcd.com/73/ https://what-if.xkcd.com/73/