The system includes two belts of rocky asteroids : one at about 3 AU and a second at about 20 AU , whose structure may be maintained by a hypothetical second planet , Epsilon Eridani c. Epsilon Eridani harbors an extensive outer debris disk of remnant planetesimals left over from the system 's formation .
The system includes two belts of rocky asteroids : one at about 3 AU and a second at about 20 AU , whose structure may be maintained by a hypothetical second planet , Epsilon Eridani c. Epsilon Eridani has an extensive outer debris disk of remnant planetesimals left over from the system 's formation .