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What would we see, and how would Earth be affected, if Sirius, the brightest star in our night sky, were to go supernova? Would it be over in a blink or a decade? And would it be visible in daylight?
Mike Follows
Sutton Coldfield, West Midlands, UK
Sirius is a binary star system that is only 8.611 light years from Earth, comprising a main sequence star of a type larger than our sun and a white dwarf. If one went supernova, there is little doubt that it would be visible even in daylight and would certainly cause a mass…
