Several features of airglow can be seen in this spectrum of the night sky, such as the emission from neutral Oxygen atom (labeled by OI), and Oxygen molecule (O2).

• 由此夜空光谱，不难察觉夜空的数个光源，例如天然的氧原子发射线(以OI标示)及氧分子发射线(以O2标示)。