What is the farthest constellation from the Earth that we can see?
Constellations are groups of stars lying in the same region of the sky
as seen from Earth. The stars that constitute a
constellation need and in general are not at the same distance from us. So the
question you have asked cannot have any meaning for constellations. It is still
meaningful to ask the same question for clusters of stars. Unfortunately I do
not know the answer to that question. The furthest object we can see with our na ked eye is the
Andromeda galaxy which is about a million light years away.