A near-Earth object is not a type of celestial body.
An astronomical object or celestial object is a naturally occurring physical entity , association , or structure that current astronomy has demonstrated to exist in the observable universe .. physical entity. physical body. astronomy. astronomy. observable universe. observable universe. In astronomy , the terms `` object '' and `` body '' are often used interchangeably .. astronomy. astronomy. However , an astronomical body or celestial body refers to a single , tightly bound contiguous entity , while an astronomical or celestial object refers to a complex , less cohesively bound structure , that may consist of multiple bodies or even other objects with substructures .. Examples for astronomical objects include planetary systems , star clusters , nebulae and galaxies , while asteroids , moons , planets , and stars are astronomical bodies .. galaxies. galaxies. moons. Natural satellite. star. star. A comet may be identified as both body and object  : It is a body when referring to the frozen nucleus of ice and dust , and an object when describing the entire comet with its diffuse coma and tail .. comet. comet. nucleus. Comet nucleus. coma. Coma ( cometary ). tail. Comet tail