the max that can happen in 2012 will be physical polar
shift.....................not as dramatic as in the movie
2012...........most likely like in ''Day After Tomorrow'' when
climate changes very suddenly plus several super-earthquakes and
mega-tsunamis.......................ONLY lah...........LOL
the 2 stars are 300-600 light-years away so this supernova event
will happen in 300-600 years...............but there's no way of
telling if indeed they had gone supernova 300-600 years ago ! so
the effects might just happen tomorrow............
while there's no way of telling until the effects are
here..................but with Betelgeuse shrinking at 1% yearly,
i'll say the absolutely maximum time Earth has got would be 600+
years...............
i wonder if God/Allah can house the many billions of people in
their respective heavens at one go..........LOL.........and don't
forget all the animals too...........especially Man's Best
Friend.............the Chihuahua..........LOL