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Friday, September 16, 2005

 

So why does it happen?

A brush by from a Coronal Mass Ejection not driected at the Earth triggers a two day geomagnetic storm seen well towards the equator, a near head on collision with a CME balsted out by a triple C class flare event does, well, not very much. Why is this? Well, nobody really knows. The iteraction of the twisty magnetic fields of the CME with that of Earth is poorly understood, and prediction is fraught with uncertainties. While everyone expected this CME to have a high probability of having the right stuff, it turned out it didn't. Still, more flares have happened, and there is still chance of an auroral storm yet.

In the meantime, console yourself with more gallery images from Space Weather and Solar Terrestrial Dispatch. Also have a look at Megan's latest Solar image. Then pop over to the Alaskan auroral web cam, and see if anything is happening (its cloudy at the moment).

If it is still cloudy you can download the latest version of Stellarium, and pretend you are looking at the night sky. Then over to Tom's for the latest on the Russian Astrologer suing NASA. Or you can head to the Hayabusa site and download this animation of the apporach to the asteroid.

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