Earth and the Moon

Stargazing Basics

How do objects move in the night sky over the course of an entire year?

The stars and planets also appear to move very slowly across the sky because of Earth’s orbital motion around the Sun. Over the course of a full solar year, a celestial object will make one complete circuit around the sky. So if you see a particular star at a particular location in the sky, you will likely see it again in the same place exactly one year later—if you return to the same stargazing spot.


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