Night sky

The term night sky refers to the sky as seen at night. The term is usually associated with astronomy, with reference to views of celestial bodies such as stars, the Moon, and planets that become visible on a clear night after the Sun has set. Natural light sources in a night sky typically include starlight, moonlight, and skyglow depending on location and timing. Weather phenomenon such nighttime thunderstorms can dominate the sky, and transient events such as a great comet


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