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]
 | |
| Discovery | |
|---|---|
| Discovered by | Near-Earth Asteroid Tracking 1.2-m reflector at Haleakala[1] |
| Discovery date | March 28, 2004 |
| Designations | |
| 2004 F3 | |
| Orbital characteristics | |
| Epoch | 2008-Jan-26 (JD 2454491.5)[2] |
| Aphelion | 5.171 AU (Q) |
| Perihelion | 2.867 AU (q) |
| Semi-major axis | 4.019 AU (a) |
| Eccentricity | 0.2865 |
| Orbital period | 8.06 yr |
| Inclination | 15.98° |
| Last perihelion | 2021-Feb-22[3] 2013-Jan-28[4] 2005-Jan-04[4] |
| Next perihelion | 2029-Oct-28[5] |
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]
References
edit- ^ a b "IAUC 8313: C/2004 F2; P/2004 F3". IAU Central Bureau for Astronomical Telegrams. 2004-03-29. Retrieved 2012-07-31.
- ^ "JPL Small-Body Database Browser: 246P/NEAT" (last observation: 2012-07-24; arc: 8.48 years). Jet Propulsion Laboratory. Retrieved 2012-07-31.
- ^ "246P/NEAT Orbit". Minor Planet Center. Retrieved 2014-06-20.
- ^ a b Syuichi Nakano (2012-06-08). "246P/NEAT (NK 2273)". OAA Computing and Minor Planet Sections. Retrieved 2012-07-31.
- ^ "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)
- ^ "IAUC 9192: C/2011 A2; 246P". IAU Central Bureau for Astronomical Telegrams. 2011-01-14. Retrieved 2012-07-31.
- ^ 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.
- ^ a b Seiichi Yoshida (2010-11-13). "246P/NEAT". Seiichi Yoshida's Comet Catalog. Retrieved 2012-07-31.
External links
edit- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 246P/NEAT – Seiichi Yoshida @ aerith.net
- Elements and Ephemeris for 246P/NEAT – Minor Planet Center
- 246P/NEAT at the Minor Planet Center's Database
- 246P/NEAT – Kazuo Kinoshita (2011 Dec. 22)
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