星星为什么会“眨眼睛”？（把自然讲给你听）

Group 1 - The phenomenon of stars "twinkling" is caused by fluctuations in the refractive index of light due to atmospheric turbulence [1][2] - The refractive index changes as light travels through different densities of air, leading to a perceived displacement of stars from their actual positions, known as "apparent shift" [1] - Atmospheric turbulence is categorized into mechanical turbulence, caused by obstacles like buildings and trees, and thermal turbulence, resulting from uneven temperature distribution on the Earth's surface [2] Group 2 - Observing stars is more stable when telescopes are placed at higher altitudes, where the effects of atmospheric turbulence are minimized [2] - The twinkling of stars enhances the experience for stargazers, emphasizing the importance of environmental protection for clearer night skies [3]