👉 Monochromy is a phenomenon in astronomy where all light from a single source or object appears to be of the same color. This can occur due to interference between different wavelengths of light, which are emitted by different materials and objects. For example, if you shine a bright red light into a dark blue sky, you will see that most of the light is red, but some parts of it (like the violet part) may be blue or green. This phenomenon can be observed in telescopes
