Which term refers to celestial bodies that have a definite pattern and name associated with them?

The term that refers to celestial bodies having a definite pattern and name associated with them is a constellation. Constellations are groupings of stars that form recognizable shapes or patterns and have been identified and named throughout history by various cultures. Their significance lies not only in their aesthetic arrangement in the night sky but also in their use for navigation and storytelling in ancient times.

Galaxies, while large systems containing billions of stars, gas, dust, and dark matter, do not have fixed shapes that can easily be recognized as patterns made up of individual stars. Clusters refer to groups of stars or galaxies that are bound by gravity but do not convey a recognizable pattern like constellations do. Systems typically refer to groups of celestial bodies that may include planets, moons, and stars in some form of interaction or gravitational influence, which again does not correspond to the pattern identification associated with constellations.