# 166P/NEAT

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For other comets discovered by the Near-Earth Asteroid Tracking survey, see [Comet NEAT (disambiguation)](/source/Comet_NEAT_(disambiguation)).

**166P/NEAT** is a [Chiron-type comet](/source/List_of_numbered_comets) and [centaur](/source/Centaur_(small_Solar_System_body)) in the outer [Solar System](/source/Solar_System). It was discovered by the [Near Earth Asteroid Tracking](/source/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](/source/Coma_(cometary)), along with [60558 Echeclus](/source/60558_Echeclus), [2060 Chiron](/source/2060_Chiron), [165P/LINEAR](/source/165P/LINEAR) and [167P/CINEOS](/source/167P/CINEOS). It is also one of the reddest centaurs ever known.[4]

166P/NEAT has a [perihelion](/source/Apsis) distance of 8.56 astronomical units.[5]

## References

1. J. C. Shi & Y. H. Ma (2015). ["CCD photometry of active Centaur 166P/2001 T4 (NEAT)"](https://academic.oup.com/mnras/article-pdf/454/4/3635/18506310/stv2274.pdf). *Monthly Notices of the Royal Astronomical Society*. **454** (4): 3635–3640. [Bibcode:2015MNRAS.454.3635S](https://ui.adsabs.harvard.edu/abs/2015MNRAS.454.3635S). [doi:10.1093/mnras/stv2274](https://doi.org/10.1093/mnras/stv2274)

1. Syuichi Nakano (2005-06-30). ["166P/NEAT (2001 T4) (NK 1187)"](http://www.oaa.gr.jp/~oaacs/nk/nk1187.htm). OAA Computing and Minor Planet Sections. Retrieved 2012-02-20.

1. ["Horizons Batch for 166P/NEAT on 2053-Nov-26"](https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%27166P%27&START_TIME=%272053-Nov-24%27&STOP_TIME=%272053-Nov-28%27&STEP_SIZE=%271%20hours%27&QUANTITIES=%2719%27) (Perihelion occurs when rdot flips from negative to positive). [JPL Horizons](/source/JPL_Horizons_On-Line_Ephemeris_System). Retrieved 2023-07-06. (JPL#51 Soln.date: 2021-Apr-15)

1. J. M. Bauer; Y. R. Fernández; K. J. Meech (2003). "An Optical Survey of the Active Centaur C/NEAT (2001 T4)". *Publications of the Astronomical Society of the Pacific*. **115** (81): 981–989. [Bibcode:2003PASP..115..981B](https://ui.adsabs.harvard.edu/abs/2003PASP..115..981B). [doi:10.1086/377012](https://doi.org/10.1086/377012)

1. ["166P/NEAT – JPL Small-Body Database Lookup"](https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=166P). *ssd.jpl.nasa.gov*. [Jet Propulsion Laboratory](/source/Jet_Propulsion_Laboratory). Retrieved 2008-09-14.

## External links

- [166P/NEAT](http://www.aerith.net/comet/catalog/0166P/2001T4.html) at Seiichi Yoshida's website

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Adapted from the Wikipedia article [166P/NEAT](https://en.wikipedia.org/wiki/166P%2FNEAT) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/166P%2FNEAT?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.