"Heavenly body" is a term often used to refer to celestial objects like stars, planets, and moons. However, there are several synonyms that can be used interchangeably, depending on the context in which they are used. Another common term is "cosmic body", which encompasses everything that is part of the universe. "Celestial body" is a little more specific and usually refers to objects that are visible in the sky, like planets and stars. "Astronomical body" is also commonly used to describe these objects. "Orb" is a poetic synonym that describes a circulating body in space. Finally, "satellite" is a term used for objects that orbit planets.