What visual feature defines the descriptive power of 'globular' when viewing the cluster's light profile?
Answer
The concentration of light creating a visual gradient from a bright core to a diffuse edge.
The visual gradient, where the light is most concentrated and bright toward the center and gradually fades outward, is a defining feature that visually supports the globular description.

Related Questions
What is the typical stellar population size of a globular cluster?How ancient are globular clusters generally considered to be?How do globular clusters contrast visually and structurally with open clusters?What frequent dynamic event characterizes the extremely dense core of a globular cluster?What specific type of star can evolve as a result of the high-density environment in a cluster core?In a large spiral galaxy like the Milky Way, where are globular clusters predominantly situated?Compared to open clusters, what is characteristic of the orbital paths of globular clusters around a galaxy's center?What is the approximate typical diameter spanned by a globular cluster containing up to ten million stars?What real-world factor often prevents a globular cluster from being a *perfectly* spherical shape?What visual feature defines the descriptive power of 'globular' when viewing the cluster's light profile?