Are the colors affected by the different seasons?
The season should not have an effect on the colors of the aurora. The colors are created by different “energy transitions” of electrons in the atoms of nitrogen and oxygen in Earth’s upper atmosphere. When energetic particles shower into the Earth’s atmosphere from space, they can “excite” or “kick” electrons in nitrogen and oxygen atoms into a higher orbit; a higher energy state. When the electron settles back down to a lower energy state, it emits light, and the color of that light depends on the difference in energy between electron orbit. Red light comes from a lower energy transition than green or blue. Mr.
