mheslep
Jan7-10, 11:44 AM
I see from this pop press (http://www.thesun.co.uk/sol/homepage/news/2795981/Supernova-may-wipe-out-the-Earth.html) article that the ~nearby (3,260 ly) T Pyxidis is in a possible super nova end stage. For comparison, the year 1054 c.e. explosion of SN 1054 (http://en.wikipedia.org/wiki/SN_1054) was day light visible and was 6300 ly away. Assuming the explosions have similar energies, we should receive, what, 4X the energy on Earth from a T Pyxidis explosion? What is the likely energy release from a T Pyxidis super nova, as compared to SN1054?