A five-by-five array of 15″ pixels showing the nebula’s magnetic field, rotated 90° from the EVPA, as measured using simultaneous fitting. White bars denote 0.5–1σ significance, yellow bars 1–2σ, and green bars 2–3σ. The pixel field is oriented north-south, as expected for a toroidal magnetic field in the inner nebula. Other pixels show some EVPA variation, possibly following the filamentary structures of the background Chandra image. A flux cut of >700 counts removes spurious polarization vectors in the outskirts. The red bar represents PD=100%.