156P/Russell–LINEAR

Periodic comet December 2025 other comets of the same name Comet Russell (disambiguation)Comet Russell List of comets discovered by the LINEAR project 156P/Russell–LINEAR 156P 2020-12-09 NEOWISE image 3-color.png Comet Russell–LINEAR on 9 December 2020 by NEOWISE IAUC_8118 Kenneth S. Russell Siding Spring Observatory 3 September 1986 P/1986 R1, P/1993 WU, P/2000 QD 181, P/2000 XV 43 jpldata MPC 20 March 2020 (JD 2458928.5) 35.57 years 2,317 1.333 AU 5.591 AU 3.462 AU 0.61492 6.442 years 17.264° 35.397° 0.378° 322.84° 2.732 0.339 AU 0.100 AU jpldata 2.0 ± 0.2 km miGillan_2024 12.7 18 November 2020 30 April 2027Horizons2027 156P/Russell–LINEAR is a Jupiter-family comet with an orbital period of 6.4 years. It was discovered by Kenneth S. Russell in September 1986.Kronk Gary C&MS: 156P/Russell-LINEAR https://cometography.com/pcomets/156p.html cometography.com 20 May 2023 Observational history The comet was found by Australian astronomer Kenneth S. Russell in September 1986 on a plate exposed on 3 September 1986 using the U.K. Schmidt Telescope of Siding Spring Observatory, Australia. The comet had an apparent magnitude of 17. Follow up observations on 25 September failed to recover the comet.IAUC_8118 The comet was spotted again in a plate exposed using the 0.46-m Schmidt telescope of Palomar Observatory by Carolyn S. Shoemaker on 19 November 1993. The comet had asteroidal appearance and was given the provisional designation 1993 WU.IAUC_8118 The comet was observed again during the 2000 perihelion. The comet was noted as an asteroidal object by Lincoln Near-Earth Asteroid Research on 31 August and 5 November and was given the provisional designation 2000 QD 181, and was observed again in November 2000-January 2001 and named 2000 XV 43. Timothy B. Spahr noted that these objects were the same as the 1986 comet.IAUC_8118 It was then given the number 156P.IAUC_8128 The comet had passed 0.70 AU from Jupiter in November 1970 and its perihelion distance decreased from 1.73 AU to 1.56 AU. The comet approached again to Jupiter in March 2018 at a distance of 0.36 AU and its perihelion distance decreased to 1.33 AU, while the orbital period decreased from 6.85 years to 6.44 years.cometography jpldata During the 2020 perihelion, the comet approached to 0.48 AU from Earth on 24 October 2020.cometography It brightened to an apparent magnitude of 9.7 in mid November 2020.Yoshida Physical characteristics The cyanide and diatomic carbon production rate was estimated to be 2.85 0.51 24 mol/s and 3.44 0.62 24 mol/s respectively on 14 October 2020, when the comet was located at an heliocentrical distance of 1.40 AU.Jehin_2020 The production rates are comparable to those of other Jupiter-family comets. Two strong jets were observed during perihelion and persisted until December, indicating increased activity after perihelion.Aravind_2022 The size of its nucleus is estimated to be less than 2.0 ± 0.2 km mi in radius.Gillan_2024 References K. Aravind P. Halder S. Ganesh D. Sahu M. Serra-Ricart J. J. Chambó D. Angchuk T. Sivarani 4 Optical observations and dust modelling of comet 156P/Russell–LINEAR Icarus 2022 383 115042 2204.09727 10.1016/j.icarus.2022.115042 2022Icar..38315042A A. F. Gillan A. Fitzsimmons L. Denneau R. J. Siverd K. W. Smith J. L. Tonry D. R. Young 4 Dust Production Rates in Jupiter-family Comets: A Two Year Study with ATLAS Photometry The Planetary Science Journal 2024 5 1 25–39 2024PSJ.....5...25G 2312.06817 10.3847/PSJ/ad1394 free Horizons Batch for 156P/Russell-LINEAR (90001084) on 2027-Apr-30 JPL Horizons Perihelion occurs when rdot flips from negative to positive https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=%27DES%3D156P%3BCAP%27&START_TIME=%272027-Apr-25%27&STOP_TIME=%272027-May-05%27&STEP_SIZE=%273%20hours%27&QUANTITIES=%2719%27 2023-07-06 (JPL#48/Soln.date: 2023-May-03) R. H. McNaught K. S. Russell F. G. Watson D. W. Green P/2000 QD 181 1986 R1 1993 WU http://www.cbat.eps.harvard.edu/iauc/08100/08118.html IAU Circular 2003-04-19 8118 1 0081-0304 D. W. Green Comet 156P/Russell–LINEAR http://www.cbat.eps.harvard.edu/iauc/08100/08128.html IAU Circular 2003-05-01 8128 3 0081-0304 E. Jehin TRAPPIST comet production rates: 88/Howell, C/2020 M3 (ATLAS), C/2020 S3 (Erasmus), 156P/Russell–LINEAR https://www.astronomerstelegram.org/?read=14101 The Astronomer's Telegram 14101 1 156P/Russell–LINEAR – JPL Small-Body Database Lookup https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=156P ssd.jpl.nasa.gov Jet Propulsion Laboratory 2023-03-26 156P/Russell–LINEAR Orbit https://minorplanetcenter.net/db_search/show_object?object_id=156p Minor Planet Center 2025-12-04 S. Yoshida Weekly Information about Bright Comets (2020 Nov. 28: North) http://www.aerith.net/comet/weekly/20201128n.html www.aerith.net 2023-05-20 External links 1000433 156P 156P/Russell–LINEAR at the Minor Planet Center database 156P/Russell–LINEAR at Seiichi Yoshida's website 155P/Shoemaker 157P/Tritton Category:Periodic comets 0156 0156 0156 Category:Discoveries by Kenneth S. Russell # * * 0156 0156 0156