Discovered byNear-Earth Asteroid Tracking
1.2-m reflector at Haleakala[1]
Discovery dateMarch 28, 2004
2004 F3
Orbital characteristics A
(JD 2454491.5)[2]
Aphelion5.171 AU (Q)
Perihelion2.867 AU (q)
Semi-major axis4.019 AU (a)
Orbital period8.06 yr
Last perihelion2021-Feb-22[3]
Next perihelion2029-Oct-28[5]

246P/NEAT is a periodic comet discovered on 2004 March 28 by Near-Earth Asteroid Tracking (NEAT) using the 1.2-metre (47 in) reflector at Haleakala.[1] It was given the permanent number 246P on 2011 January 14.[6]

It is a Quasi-Hilda comet.[7] Due to perturbations by Jupiter, the 2005, 2013 and 2021 perihelion passages will be closer to the Sun.[8] The comet is observable all through its orbit.[8]


  1. ^ a b "IAUC 8313: C/2004 F2; P/2004 F3". IAU Central Bureau for Astronomical Telegrams. 2004-03-29. Retrieved 2012-07-31.
  2. ^ "JPL Small-Body Database Browser: 246P/NEAT" (last observation: 2012-07-24; arc: 8.48 years). Jet Propulsion Laboratory. Retrieved 2012-07-31.
  3. ^ "246P/NEAT Orbit". Minor Planet Center. Retrieved 2014-06-20.
  4. ^ a b Syuichi Nakano (2012-06-08). "246P/NEAT (NK 2273)". OAA Computing and Minor Planet Sections. Retrieved 2012-07-31.
  5. ^ "Horizons Batch for 246P/NEAT on 2029-Oct-28" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2021-09-17. (JPL#212/Soln.date: 2021-Sep-04)
  6. ^ "IAUC 9192: C/2011 A2; 246P". IAU Central Bureau for Astronomical Telegrams. 2011-01-14. Retrieved 2012-07-31.
  7. ^ Toth, I. (March 2006). "The quasi-Hilda subgroup of ecliptic comets - an update". Astronomy and Astrophysics. 448 (3): 1191–1196. Bibcode:2006A&A...448.1191T. doi:10.1051/0004-6361:20053492.
  8. ^ a b Seiichi Yoshida (2010-11-13). "246P/NEAT". Seiichi Yoshida's Comet Catalog. Retrieved 2012-07-31.
Numbered comets Previous245P/WISE 246P/NEAT Next247P/LINEAR