169P/NEAT
169/NEAT is a periodic comet in the Solar System. It is the parent body of the alpha Capricornids meteor shower. 169/NEAT may be related to comet P/2003 T12 (SOHO).[3]
| Discovery | |
|---|---|
| Discovered by | NEAT |
| Discovery date | March 15, 2002 |
| Alternative designations | P/2002 EX12 |
| Orbital characteristics A | |
| Epoch | March 6, 2006 |
| Aphelion | 4.602 AU |
| Perihelion | 0.6054 AU |
| Semi-major axis | 2.604 AU |
| Eccentricity | 0.7675 |
| Orbital period | 4.201 a |
| Inclination | 11.3185° |
| Last perihelion | 2018 April 29[1] 2014 February 15[2] 2009 November 30 |
| Next perihelion | 2022-Jul-09 (JPL Horizons last obs 2017-05-27) |
169P is a low activity comet roughly a few kilometers in diameter.[4] 169P and the smaller body P/2003 T12 likely fragmented from a parent body roughly 2900 years ago.[4]
It is the parent body of the Alpha Capricornids meteor shower in late July.
References
- "169P/NEAT Orbit". Minor Planet Center. Retrieved 2014-06-02.
- Syuichi Nakano (2011-10-29). "169P/NEAT (NK 2135)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-25.
- 169P NEAT and P/2003 T12 - 300 years ago
- Sosa, Andrea; Fernández, Julio Angel; Fitzsimmons, Alan (2015). "Comets 169P/NEAT and P/2003 T12 (SOHO): Two possible fragments of a common ancestor?". American Astronomical Society. Bibcode:2015IAUGA..2255583S.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 169P on Seiichi Yoshida's comet list
| Numbered comets | ||
|---|---|---|
| Previous 168P/Hergenrother |
169P/NEAT | Next 170P/Christensen |
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