The moon orbits the earth in about 27.322 days. The moon is 3,474.8 kilometers in diameter, which is equal to 2,159.14062 miles. This song explains that the moon reflects the sunlight, and that is why it is bright at nighttime. Have you ever wondered why the moon is out during the day? It's because the moon sometimes reflects the sun's light so well that it is still seen. In order for the moon to be visible during the daytime, it has to be above the horizon.
