Answer:
The Earth-sun-moon system involves the interactions of three celestial bodies: the Earth, the sun, and the moon. One of the most notable phenomena is the cyclic patterns of lunar phases. An eclipse of the sun occurs when the moon passes between the Earth and the sun. An eclipse of the moon, or lunar eclipse, occurs when the Earth passes between the sun and moon. This can result in a total lunar eclipse or partial lunar eclipse.
The Earth-sun-moon system also plays a role in the seasons on Earth. For example, summer is summer in the northern hemisphere and winter in the southern hemisphere.