166P/NEAT
              < 166P 
 
            
          | Discovery | |
|---|---|
| Discovered by | NEAT | 
| Discovery date | October 15, 2001 | 
| Designations | |
| P/2001 T4 | |
| Orbital characteristics | |
| Epoch | March 6, 2006 | 
| Aphelion | 19.1 AU | 
| Perihelion | 8.559 AU | 
| Semi-major axis | 13.83 AU | 
| Eccentricity | 0.3811 | 
| Orbital period | 51.43 a | 
| Inclination | 15.3813° | 
| Last perihelion | May 20, 2002 | 
| Next perihelion | November 26, 2053 | 
166P/NEAT is a periodic comet and centaur in the outer Solar System. It was discovered by the Near Earth Asteroid Tracking (NEAT) project in 2001 and initially classified a comet with provisional designation P/2001 T4 (NEAT), as it was apparent from the discovery observations that the body exhibited a cometary coma. It is one of few known bodies with centaur-like orbits that display a coma, along with 60558 Echeclus, 2060 Chiron, 165P/LINEAR and 167P/CINEOS. It is also one of the reddest centaurs.
166P/NEAT has a perihelion distance of 8.56 AU, and is a Chiron-type comet with (TJupiter > 3; a > aJupiter).