Final answer:
The system described relies on the scattering of light, where blue light scatters more than red light due to the atmosphere, causing distant objects to appear less distinct and bluish. This also explains why the sky looks blue and is used in astronomy to study celestial bodies.
Step-by-step explanation:
The system being referred to in the student's question relies on the scattering of light by dust and other particles in the atmosphere.
This phenomenon, where haze or atmospheric dust causes distant objects to appear less distinct and have a bluish tint, is due to the way shorter (blue) wavelengths of light scatter more than longer (red) wavelengths.
The same principle explains why the sky appears blue during the day and why distant stars can appear redder due to interstellar dust.
When we observe the light from stars and other celestial bodies, the blue light is scattered out, making the light source look redder. This effect is very useful in astronomy to analyze the atmospheric constituents of planets and stars.
For instance, a spectrum of the HR 8799 planet indicates a hydrogen-rich atmosphere, while another planet in the same system exhibits methane presence.
Earth-based observatories and space telescopes use this knowledge to better understand celestial phenomena and overcome the blurring effects of Earth's atmosphere.