Paschen series

The Paschen series refers to a set of specific colors of light emitted by hydrogen atoms when their electrons fall from higher energy levels (n ≥ 4) down to the third level (n=3). These emitted photons have longer wavelengths, mostly in the infrared part of the spectrum. This pattern helps scientists understand the structure of hydrogen and analyze astronomical objects like stars and nebulae. Essentially, the Paschen series is a predictable pattern of infrared emissions that result from hydrogen atoms releasing energy during electron transitions.