Re:Aurora Australis? (Score 1)

You are right, particles from a CME will hit the entire earth (typically some 12 hours after a CME) and you will see auroras in both hemispheres. In fact, in this case I saw a beautiful display from Narrabri (30degrees, 18 min South), the first time I have seen such a display so far from either pole! usually, you have to be a lot closer to the poles, people in Alaska sort of latitude up north. But the best views for those who hang out at the poles. I wintered over at the South Pole in 1999 and we were treated to spectacular displays pretty regularly during the long night. It is difficult to photograph these displays as they are a lot fainter than you might think but a friend Robert Schwartz went to great lengths to get pictures that you can check out at alizarin.physics.wisc.edu/rschwarz/life.html Cheers