Tags: Asteroid.
12165 Ringleb (provisional designation: 3289 T-2) is a main-belt minor planet. It was discovered by Cornelis Johannes van Houten Ingrid van Houten-Groeneveld and Tom Gehrels at the Palomar Observatory in San Diego County California on September 30 1973. It is named after Peter Ringleb a neurologist at the University of Heidelberg.