Polar Lights' colours

Polar lights and their colours

The polar lights can have a variety of different colours.

The colours of the aurora depend on which gas is being excited by the interaction of high-energy particles. Meaning the interaction between electrons/protons and the atmospheric gas. It is the different atmospheric gasses that determine which colour the polar light is going to be. furthermore, The photons (which are the light particles) have different wavelengths, which contributes to create different colours. The wavelength is determined by the specific atmosphere gas, its electrical state and the energy of the particle that hits the atmospheric gas. Wavelengths gets determined by the highest energy level minus the lowest energy level of the electrons being excited. The energy levels are dependent on which gas is being excited.

Polar light contains of some specific colours. The colours of aurora depends on the wavelength of the light produced. The colour red is formed when the wavelength is longer and consists of lower energy.