Solar Tachocline · shear layer
unseel.com · base of the convection zone · seat of the dynamo
r ≈ 0.69 R☉
thickness ~0.04 R☉
phase
Convection zone (differential)
Radiative core (solid-body)
Tachocline shear
Toroidal field
Unseel.com · Solar Tachocline