Question

A planet has an average distance to the sun of 0.66 AU.
How do you calculate it?

Answer 1

We can calculate that by the Parallax method..........

Answer 2

AU means astronomical unit, meaning the distance from the earth to the sun
about ‎9.2956×10⁷ miles or 1.4960×10¹¹ meters

0.66 times those results in 6.135096×10⁷ miles or 9.8736×10¹⁰ meters

I used math