169P/NEAT
Discovery
Discovered byNEAT
Discovery dateMarch 15, 2002
Alternative
designations
P/2002 EX12
Orbital characteristics A
Epoch2022-08-09 (2459800.5)
Aphelion4.6014 AU
Perihelion0.60282 AU
Semi-major axis2.6021 AU
Eccentricity0.76833
Orbital period4.1975 yr
Inclination11.2985°
Last perihelion2018 April 29[1]
2014 February 15[2]
2009 November 30
Next perihelion2022-Jul-09[1]

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] It comes to perihelion (closest approach to the Sun) on 9 July 2022.[1] On 13 July 2022 it will pass 0.1395 AU (20.87 million km) from Venus.[4] On 11 August 2026 it will pass 0.1672 AU (25.01 million km) from Earth and then come to perihelion on 21 September 2026.

169P is a low activity comet roughly a few kilometers in diameter.[5] 169P and the smaller body P/2003 T12 likely fragmented from a parent body roughly 2900 years ago.[5]

It is the parent body of the Alpha Capricornids meteor shower in late July.

References

  1. ^ a b c "169P/NEAT Orbit". Minor Planet Center. Retrieved 2014-06-02.
  2. ^ Syuichi Nakano (2011-10-29). "169P/NEAT (NK 2135)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-25.
  3. ^ 169P NEAT and P/2003 T12 - 300 years ago
  4. ^ "JPL Small-Body Database Browser: 169P/NEAT" (last observation: 2022-06-07). Jet Propulsion Laboratory. Retrieved 2022-06-22.
  5. ^ a b 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. 29. Bibcode:2015IAUGA..2255583S.