Callisto is a moon of Jupiter, not a planet in its own right. Therefore, it doesn't have its own orbit around the Sun.

To figure out the distance from Callisto to the Sun, we need to consider Jupiter's orbit:

* Jupiter's average distance from the Sun: 5.2 astronomical units (AU).

* Callisto's distance from Jupiter: 1,882,700 kilometers (1,169,000 miles)

To get the total distance from Callisto to the Sun, we need to add Jupiter's distance to the Sun and Callisto's distance from Jupiter. However, this distance will vary depending on where Jupiter is in its orbit and where Callisto is in its orbit around Jupiter.

Therefore, there isn't a single, fixed number of astronomical units for Callisto's distance from the Sun.