However, you could use terms like:
* The Sun's vast distance: This emphasizes the sheer magnitude of the distance.
* The Sun's remoteness: This highlights its distance from us.
* The Sun's astronomical distance: This emphasizes the cosmic scale of the distance.
You could also use descriptive phrases like:
* The Sun is light-years away. (This is technically incorrect, as the Sun is only 8 light-minutes away, but it conveys the idea of vast distance.)
* The Sun is a long way off.
The best way to describe the Sun's distance will depend on the context and the audience.