147P/Kushida–Muramatsu

Periodic comet May 2025 147P/Kushida–Muramatsu IAUC_5903 Yoshio KushidaOsamu Muramatsu Yatsugatake, Japan 8 December 1993 P/1993 X1P/2000 T2 1993 XIX, 1993tICQ1 jpldata MPC 17 October 2024 (JD 2460600.5) 22.09 years 7 December 1993 290 3.159 AU 4.859 AU 4.009 AU 8.03 years 0.21196 2.312° 91.667° 348.57° 38.623° 3.011 1.769 AU 0.429 AU 0.42 km miLamy_2011 10.5 0.1 hoursKokotanekova_2017 13.6jpldata 16.7jpldata 6 December 2023 19 December 2031Horizons2031 147P/Kushida–Muramatsu is a quasi-Hilda cometOhtsuka_2008 discovered in 1993 by Japanese astronomers Yoshio Kushida and Osamu Muramatsu. It was last observed in 2016MPC and will next come to perihelion on 19 December 2031.Horizons2031 Observational history The comet was discovered photographically by Yoshio Kushida and Osamu Muramatsu from the Yatsugatake South Base Observatory on the night of 8 December 1993.IAUC_5903 Several orbital calculations by Shuichi Nakano later determined its periodic nature; at that time, it had an orbital period of 7.40 years.IAUC_5908 IAUC_5916 It was later recovered at the Saji Observatory in October 2000, where Brian G. Marsden and other astronomers were able to identify it as the same object that was observed by Kushida and Muramatsu in 1993.IAUC_7507 Origin According to calculations made by Katsuhiko Ohtsuka of the Tokyo Meteor Network and David Asher of Armagh Observatory, Kushida–Muramatsu was temporarily captured by Jupiter as an irregular moon between 14 May 1949, and 15 July 1962, (12.17 +0.29 -0.27 years).Ohtsuka_2008 Campbell_2009 It is the fifth such object known to have been captured.Ohtsuka_2008 McElroy_2009 It is thought that quasi-Hilda comets may be escaped Hilda asteroids.Ohtsuka_2008 Comet Shoemaker–Levy 9, which collided with Jupiter in 1994, is a more famous example of a quasi-Hilda comet.Ohtsuka_2008 References M. Campbell Jupiter had brief encounter with icy companion https://www.newscientist.com/article/dn17780-jupiter-had-brief-encounter-with-icy-companion.html New Scientist 14 September 2009 14 September 2009 S. Nakano Y. Kushida O. Muramatsu etal D. W. Green Comet Kushida–Muramatsu (1993t) http://www.cbat.eps.harvard.edu/iauc/05900/05903.html IAU Circular 12 December 1993 5903 1 1993IAUC.5903....1N S. Nakano D. W. Green Periodic Comet Kushida–Muramatsu (1993t) http://www.cbat.eps.harvard.edu/iauc/05900/05908.html IAU Circular 16 December 1993 5908 2 1993IAUC.5908....2N D. W. Green Periodic Comet Kushida–Muramatsu (1993t) http://www.cbat.eps.harvard.edu/iauc/05900/05916.html IAU Circular 6 January 1994 5916 2 1994IAUC.5916....2G S. Nakano T. Oribe B. G. Marsden C. E. Delahodde A. Maury C. W. Hergenrother 3 D. W. Green Comet P/2000 T2 (Kushida–Muramatsu) http://www.cbat.eps.harvard.edu/iauc/07500/07507.html IAU Circular 14 October 2000 7507 1 2000IAUC.7507....1N Comet Names and Designations http://www.icq.eps.harvard.edu/names1.html International Comet Quarterly 7 August 2025 147P/Kushida–Muramatsu – JPL Small-Body Database Lookup https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=147P ssd.jpl.nasa.gov Jet Propulsion Laboratory 1 June 2019 R. Kokotanekova C. Snodgrass P. Lacerda S. F. Green S. C. Lowry Y. R. Fernández C. Tubiana A. Fitzsimmons H. H. Hsieh 5 Rotation of cometary nuclei: new light curves and an update of the ensemble properties of Jupiter-family comets Monthly Notices of the Royal Astronomical Society 2017 471 3 2974–3007 2017MNRAS.471.2974K 1707.02133 10.1093/mnras/stx1716 free P. L. Lamy I. Toth H. A. Weaver M. F. A'Hearn L. Jorda Properties of the nuclei and comae of 10 ecliptic comets from Hubble Space Telescope multi-orbit observations★: HST observations of 10 ecliptic comets Monthly Notices of the Royal Astronomical Society 2011 412 3 1573–1590 10.1111/j.1365-2966.2010.17934.x free K. McElroy Captured comet becomes moon of Jupiter http://www.cosmosmagazine.com/news/3003/captured-comet-becomes-moon-jupiter Cosmos Online 14 September 2009 15 September 2009 18 September 2009 https://web.archive.org/web/20090918085932/http://www.cosmosmagazine.com/news/3003/captured-comet-becomes-moon-jupiter dead 147P/Kushida–Muramatsu Orbit http://www.minorplanetcenter.net/db_search/show_object?object_id=147P Minor Planet Center 18 June 2014 K. Ohtsuka M. Yoshikawa D. J. Asher H. Arakida H. Arakida Quasi-Hilda comet 147P/Kushida–Muramatsu. Another long temporary satellite capture by Jupiter Astronomy & Astrophysics 489 3 2008 1355–1362 2008A&A...489.1355O 0808.2277 14201751 10.1051/0004-6361:200810321 free Horizons Batch for 147P/Kushida-Muramatsu (90001080) on 2031-Dec-19 JPL Horizons Perihelion occurs when rdot flips from negative to positive https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=%27DES%3D147P%3BCAP%27&START_TIME=%272031-Dec-18%2023%27&STOP_TIME=%272031-Dec-19%2002%27&STEP_SIZE=%2710%20min%27&QUANTITIES=%2719%27 2026-04-16 (JPL#K163/2 Soln.date: 2024-Nov-06) External links 1000147 147P 147P/Kushida–Muramatsu at the Minor Planet Center database 147P/Kushida–Muramatsu at Seiichi Yoshida's website 147P/Kushida–Muramatsu at Gary W. Kronk's Cometography 146P/Shoemaker–LINEAR 148P/Anderson–LINEAR Category:Periodic comets 0147 0147 Category:Hilda asteroids 147P 147P * * Category:Discoveries by Yoshio Kushida Category:Discoveries by Osamu Muramatsu