Radio Morphologies, Types
	• Compact Sources (arcsecond scales and smaller) • Extended Sources (Fanaroff-Riley 1974 classes) and can be very large (many arcminutes, up to Mpc) – FR I, tend to be lower power, continuous, jets • BL Lacs, radio galaxies – FR II, higher power, edge-brightened lobes • Quasars, radio galaxies – Other stuff.  More messes, oh yes!  Messes in deep space. • Optical IDs – Tough game historically – point sources, (elliptical) galaxies