What is the Collective noun for an irregular luminous band of stars?

There isn't a specific, widely accepted collective noun for an irregular luminous band of stars.

Here's why:

* Specificity: "Irregular luminous band of stars" describes a very specific astronomical feature, likely referring to a galaxy with an irregular shape.

* Common Terminology: Astronomers and scientists use specific terms for celestial objects and formations, such as "galaxy" or "irregular galaxy" rather than collective nouns.

* Figurative Language: You could use a figurative term, but it wouldn't be a technically correct collective noun. For example, you could refer to a "sprawl of stars," "a swirl of light," or "a cosmic tapestry."

In Conclusion: It's best to use the specific astronomical term, like "irregular galaxy," when describing this celestial feature.