Nighttime illumination refers to the various sources of light that are present during the night. This can include natural sources like the moon and stars, as well as artificial sources such as streetlights, neon signs, and car headlights. These lights serve multiple purposes, including enhancing visibility, improving safety, and creating ambiance in urban environments. The level of nighttime illumination can significantly impact both human activities and wildlife. For people, adequate lighting can facilitate nighttime travel and social interactions. However, excessive artificial light can disrupt the natural behaviors of animals, affecting their feeding and mating patterns. Balancing illumination is essential for both human comfort and ecological health.