
H-alpha emission
H-alpha emission is a specific type of light that is produced when hydrogen atoms are energized, typically in stars or nebulae. This emits a red color, which is important in astronomy because it helps scientists study the features and behavior of celestial objects. By observing H-alpha light, astronomers can analyze the temperature, density, and motion of gases in space, particularly in areas where new stars are forming. This emission line is crucial for understanding the dynamics of the universe and the processes that govern star formation and evolution.