Here is a celestial navigation chart of the Firefly 'Verse.
This detailed map of the firefly verse was created by ShadowTek. The map is based of the info from "The Verse In Numbers 2.0" by J.Chris Bourdier and "Arc of the Verse" by William T.Pace. The map was based on an idea by The Savior. See his map below:
That's based on "The Verse In Numbers" from Andy Gore Quantum Mechanix Inc.