Most distant object in space visible with the naked eye?

[K364]

Originally posted by Polycarp *
**
…As I understand it, visible to the naked eye under ideal seeing conditions ( indicates at the edge of visibility) are:…
6. One globular cluster: Omega Centauri*…
Everything else requires a telescope **

M13, the globular cluster in Hercules is magnitude 5.8, so it is “at the edge of visibility” as well.