👉 Callistochroma is a phenomenon observed in a star's spectral lines, where certain wavelengths are brighter than others due to differences in the chemical composition and structure of the light elements that make up these lines. This occurs because stars emit light from their core, which contains a mixture of hydrogen, helium, and other elements. The more complex and energetic states of these elements lead to higher frequencies of emitted light, causing the spectral lines to appear brighter at those wavelengths.
