159P/LONEOS

159P/LONEOS
Discovery
Discovered byLONEOS
Discovery date16 October 2003
Designations
P/2003 UD16
LONEOS 7
Orbital characteristics
Epoch21 November 2025 (JD 2461000.5)
Observation arc31.26 years
Earliest precovery date17 December 1989
Number of
observations		885
Aphelion8.095 AU
Perihelion3.617 AU
Semi-major axis5.856 AU
Eccentricity0.38236
Orbital period14.171 years
Inclination23.479°
54.937°
Argument of
periapsis		4.749°
Mean anomaly190.27°
Last perihelion22 May 2018
Next perihelion28 July 2032
TJupiter2.687
Earth MOID2.633 AU
Jupiter MOID1.345 AU
Physical characteristics
Mean radius
2.9 km (1.8 mi)
Mean density
660±120 kg/m3
Comet total
magnitude (M1)		12.9

159P/LONEOS is a Jupiter-family comet with a 14.2-year orbit around the Sun. It is one of 18 comets discovered by the Lowell Observatory Near-Earth-Object Search (LONEOS) survey.

References

  1. ↑ C. W. Hergenrother; T. B. Spahr; B. G. Marsden (3 December 2003). D. W. Green (ed.). "Comet P/2003 UD16 (LONEOS)". IAU Circular. 8248 (1). Bibcode:2003IAUC.8248....1H.
  2. ↑ "Periodic Comet Names and Designations". Planetary Data System: Small Body Node. NASA. Retrieved 7 July 2026.
  3. 1 2 "159P/LONEOS – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 7 July 2026.
  4. ↑ "159P/LONEOS Orbit". Minor Planet Center. Retrieved 18 June 2014.
  5. ↑ M. Meyer; B. G. Marsden (7 January 2004). "Comet 159P/2003 UD16 (LONEOS)". IAU Circular. 8263 (1). Bibcode:2004IAUC.8263....1M.
  6. ↑ S. Nakano (19 January 2004). "159P/LONEOS (NK 1024)". OAA Computing and Minor Planet Sections. Retrieved 25 February 2012.
  7. ↑ "Horizons Batch for 159P/LONEOS on 2032-Jul-28" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 6 July 2023. (JPL#54/Soln.date: 2021-Jul-01)
  8. ↑ Y. R. Fernández; M. S. P. Kelley; P. L. Lamy; et al. (2013). "Thermal properties, sizes, and size distribution of Jupiter-family cometary nuclei". Icarus. 226 (1): 1138–1170. arXiv:1307.6191. Bibcode:2013Icar..226.1138F. doi:10.1016/j.icarus.2013.07.021.
  9. ↑ M. L. Paradowski (2022). "A New Indirect Method of Determining Density of Cometary Nuclei" (PDF). Acta Astronomica. 72 (2): 141–159. Bibcode:2022AcA....72..141P. doi:10.32023/0001-5237/72.2.4. ISSN 0001-5237.