Hello, we have seen the lights recently in Norway where they are more greeny/yellow, evedently they are redder the further south you are. Before going out on an expedition to see them we were told that the human eye is not as good at seeing them than a camera, and especially older eyes. It also takes a while for your eyes to adjust to looking for things in the sky at night so be prepared to be out looking for a while. The main bit of advise we were given was that if you think you might be seeing them, but are not sure, take a photo on a long exposure and check - as the camera can often see something when the eye sees nothing.