A moonroof and a sunroof are both panoramic openings in the roof of a vehicle. The main difference between them is the type of view they provide. A moonroof is a transparent dome that is designed to provide a view of the night sky. It is usually made of glass and can be opened or closed. A sunroof is a large opaque panel that is designed to let in natural light and air but does not provide a view of the sky. It is usually made of metal and is usually fixed in place.