I am writing fictional stories that are universe-wide, and I feel like the world "galaxy" is too mammal-centric and Milky Way-centric because it involves a reference to milk.
Is there any other way to call a large unit of stars like this?
Examples:
Shulamit is from a ____ called NGC 7840.
The sun, Betelgeuse and UY Scuti are all located in Milky Way _____.