* Asteroid orbits are not circular: They are elliptical, meaning their distance from the sun varies throughout their orbit.
* Many asteroids exist: There are millions of asteroids, and we don't have precise orbital data for all of them.
However, we can talk about the furthest known asteroid on average:
* That title likely belongs to (90377) Sedna. This object is considered a trans-Neptunian object (TNO), which means it orbits beyond Neptune. It has a highly eccentric orbit that takes it as far as 937 AU from the sun (1 AU is the average distance between the Earth and the sun).
It's important to remember that new asteroids are discovered all the time, and the record for the furthest asteroid could change as our knowledge grows.
