APOD 1.4 September Aurora

http://apod.nasa.gov/apod/ap120921.html

The green and red aurora depicted in this image will become more common because of the equinox seasons bringing more geomagnetic storms. No one is really sure why the equinox seasons increase the amount of geomagnetic storms, but what we do know is that the more geomagnetic storms that Earth suffers, then the more auroras will be visible. In this picture it happens to be an image of the Northern Lights, along with a tree directly in the middle. The lights are actually extremely high in the sky, around 100 kilometers. A few major stars are also visible in the picture, such as Polaris, Shedar, Kochab, and Altair.