[Waterluvian]

On its own it’s a bit of a useless number. You’d have to know how many AU Pluto is to understand context.

But if you got “15x further than Pluto” you have context without needing to know any other trivia-style numbers.

[wqaatwt]

AU is not exactly a trivia style number. It’s one of the most standard units of measuring distance between different bodies in space.

Also it’s not like distance to Pluto is a meaningful number either since it’s extremely variable . AU at least is fixed