What is another word for astronomical distance?
Pronunciation: [ɐstɹənˈɒmɪkə͡l dˈɪstəns] (IPA) 
When talking about distances in space, the term "astronomical distance" is a common phrase used to describe the vast expanse that exists between celestial bodies. However, there are other synonyms that can be used to convey the immense scale of space. Some alternatives to "astronomical distance" might include "galactic span" which references the distance between galaxies, or "cosmic separation" which can describe the space between stars, planets, and other objects within the cosmos. "Interstellar gulf" is also a fitting phrase to describe the vast distances between stars, while "light-year" is a popular unit of measurement that describes how far light travels in one year.
