Do parabolic mirrors have a center or curvature?

Question

*Of, not or. -_-

Answer 1

Since they are not spherical, they don't have a center of curvature, but they do have a focal point.  My reflecting telescope has a parabolic mirror, and it brings light to a focal point.  

Answer 2

Parabolic mirrors are curved.

They also have a focus.

You could think of this as a "center" but it is probably better to leave it as focus or focal point.

When parallel light rays strike a parabolic mirror, they are reflected back to the focus.

This is one way of defining a parabola, BTW.

bye for now.