No, the Moon is not a star, and it is not the closest star to Earth. The Moon is Earth's natural satellite, meaning it orbits around the Earth. The closest star to Earth is the Sun, which is located about 93 million miles (150 million kilometers) away from us. The Sun is a star, and it provides light and heat to our planet. The Moon, on the other hand, reflects sunlight and appears as a bright object in our night sky.