163P/NEAT

Jupiter-family comet other comets discovered by the Near-Earth Asteroid Tracking survey Comet NEAT (disambiguation) July 2026 163P/NEAT IAUC_8429 Near-Earth Asteroid Tracking (644) Palomar Observatory 5 November 2004 P/2004 V4 jpldata MPC 21 November 2025 (JD 2461000.5) 29.39 years 24 October 1990Meyer_2004 384 2.055 AU 5.465 AU 3.760 AU 0.45348 7.29 years 12.724° 102.07° 349.67° 310.26° 2.858 0.946 AU 0.094 AU jpldata 1.39 km miFernandez_2013 11.8 16.5 5 August 2019NK2129 24 November 2026Horizons2026 163P/NEAT is a Jupiter-family comet roughly 3 km in diameter with a 7.3 year orbit around the Sun. It was discovered on 5 November 2004 by Near-Earth Asteroid Tracking (NEAT) using the 1.2 meter Samuel Oschin telescope at the Palomar Observatory.IAUC_8429 It will come to perihelion on 24 November 2026 when it will be 2.1 AU from the Sun, and is only expected to reach magnitude 18Van_Buitenen placing it outside the range of most amateur astronomers. Observational history Precovery images of the comet were found by Maik Meyer in December 2004.Meyer_2004 There were two images from 1997, two images from 1991, and three images from 1990. It is subsequently given a permanent numerical designation (163P) on 18 January 2005.IAUC_8468 During the 2005 perihelion passage the comet brightened to an apparent magnitude of about 16.Yoshida-2005 Ahead of its 2012 apparition, the comet was observed three times on 3 November 2011 by the Palomar Transient Factory (PTF) survey while it was a 20th-magnitude object at a distance of 1.5 AU e6km unit from the Sun.Waszczak_2013 Orbit Around 17 November 2114, the comet will pass about 0.117 AU e6km e6mi unit from Jupiter.jpldata Physical characteristics Infrared observations obtained by the Spitzer Space Telescope between 2006 and 2007 revealed that the nucleus of 163P/NEAT is about 1.39 km mi in radius.Fernandez_2013 References Y. R. Fernández M. S. P. Kelley P. L. Lamy etal Thermal properties, sizes, and size distribution of Jupiter-family cometary nuclei Icarus 2013 226 1 1138–1170 2013Icar..226.1138F 1307.6191 10.1016/j.icarus.2013.07.021 K. J. Lawrence R. H. McNaught D. W. Green Comet P/2004 V4 (NEAT) http://www.cbat.eps.harvard.edu/iauc/08400/08429.html IAU Circular 2004-11-06 8429 2 2004IAUC.8429....2L D. W. Green Comet 163P/2004 V4 (NEAT) http://www.cbat.eps.harvard.edu/iauc/08400/08468.html IAU Circular 2005-01-18 8468 4 2005IAUC.8468....4G 163P/NEAT – JPL Small-Body Database Lookup https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=163P ssd.jpl.nasa.gov Jet Propulsion Laboratory 2012-02-28 M. Meyer The Precovery of Comet 163P/2004 V4 (NEAT) http://www.comethunter.de/163p.html Catalogue of Comet Discoveries 2004 2012-02-28 163P/NEAT Orbit http://www.minorplanetcenter.net/db_search/show_object?object_id=163P Minor Planet Center 2014-06-18 A. Waszczak E. O. Ofek O. Aharonson etal Main-belt comets in the Palomar Transient Factory survey – I. The Search for Extendedness https://academic.oup.com/mnras/article-pdf/433/4/3115/4920454/stt951.pdf Monthly Notices of the Royal Astronomical Society 2013 433 4 3115–3132 2013MNRAS.433.3115W 10.1093/mnras/stt951 free 2011-10-12 163P/NEAT (NK 2129) OAA Computing and Minor Planet Sections Syuichi Nakano Syuichi Nakano http://www.oaa.gr.jp/~oaacs/nk/nk2129.htm 2012-02-28 2004-12-08 MPEC 2004-X29 : COMET P/2004 V4 (NEAT) IAU Minor Planet Center http://www.minorplanetcenter.net/iau/mpec/K04/K04X29.html 2012-02-28 2005-04-23 163P/NEAT (2005) Seiichi Yoshida's Comet Catalog Seiichi Yoshida http://www.aerith.net/comet/catalog/0163P/2004V4.html 2012-02-28 G. van Buitenen 163P/NEAT https://astro.vanbuitenen.nl/comet/163 astro.vanbuitenen.nl 2026-07-24 Horizons Batch for 163P/NEAT (90001108) on 2026-Nov-24 JPL Horizons Perihelion occurs when rdot flips from negative to positive https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%27DES%3D163P%3BCAP%27&START_TIME=%272026-Nov-24%27&STOP_TIME=%272026-Nov-24%2003:00%27&STEP_SIZE=%2710%20minutes%27&QUANTITIES=%2719%27 2026-07-24 (JPL#40 Soln.date: 2021-Sep-22) External links 1000521 163P 163P/NEAT at the Minor Planet Center database 163P/NEAT at Seiichi Yoshida's website 163P/NEAT at Gideon van Buitenen's website 163P/NEAT at Kazuo Kinoshita's website 162P/Siding Spring 164P/Christensen Category:Periodic comets 0163 163P # 163P 163P 163P *