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HI Greg,
what you are describing, i.e. the white bars in mid air moving quite fast, are a rare phenomena from our geo mag lat. This is a very dynamic display in the top 5% of what I have seen over the years. Like you the first time that I saw it I didn't know what I was looking at. That was 31 years ago! That is a very important piece of the observation by you.
They are rays BTW it is just that they are closer to you than the ones that seem to start near the horizon that you saw later on. Its that 2D - 3D thing. Your mind has to learn how to separate the multiple layers that you are seeing/imaging. It all takes practice, but I think you are learning quickly. It was only when I started photorgaphing the aurorae during cycle 22 that I really understood what was going on.
Many thanks once again.
BTW that's an intersting looking spot rotating onto the solar disc right now. It could be worth keeping an eye on.
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