Why can’t I see the stars in Wuxi?

Wuxi is a developed city, and this phenomenon of disappearing stars exists in many developed cities. As for the "disappearance" of stars, this is due to severe light pollution. Light pollution (light pollution) refers to artificial light hitting the atmosphere and then reflecting back to the ground, causing the originally dark night sky to reflect the color of the light. City lights are the main cause of light pollution, especially street lights. So we can only see the sky that is reflected in yellow and red by the light, and the brightness of the stars cannot exceed these light pollutions.