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1 October 2016 at 9:10 pm
#577500
![](https://britastro.org/wp-content/uploads/2021/12/picture-37-1639665116-80x80.jpg)
Participant
There is a discussion and images here http://www.orbiter-forum.com/showthread.php?t=36047 on proton beams aurora (plus images) . Need to sort out my library (book stacks) for Neil Bone’s and Akosofu’s auroral books, There should be something in those .Hope this links help a bit.