The Fanaroff-Riley Classification (FR Classification)
is a classification of Radio Sources intended to distinguish
Radio Galaxy with lobes from Active Galactic Nuclei.
- Class FR-I - Luminosity decreases from a central point.
- Class FR-II - luminosity increases from a central point.
The first appears to be an AGN, the second, a radio Galaxy
with Lobes (regions away from the center emitting much
of the Radio Electromagnetic Radiation).