What defines a constellation?

A constellation is defined as a grouping of stars that form recognizable patterns in the night sky, often named after mythological figures, animals, or objects. This definition emphasizes the cultural and historical significance of constellations, as they have been used throughout history for navigation and storytelling.

The grouping of stars that constitute a constellation is typically not random; these stars may be located at vastly different distances from Earth but appear to be adjacent from our perspective. The names and representations of many constellations are derived from ancient cultures, particularly those of Greek and Roman mythology, which adds to their significance.

In contrast, a collection of planets does not represent a constellation since planets do not form fixed patterns like stars. A specific type of galaxy refers to a distinct structure within the universe and is unrelated to the concept of constellations. Lastly, a pattern of dark holes in the sky does not accurately describe a constellation either, as constellations are defined by visible stars rather than gaps in the cosmic fabric.