147P/Kushida–Muramatsu


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147P/Kushida–Muramatsu
Discovery
Discovered byYoshio Kushida and Osamu Muramatsu
Discovery date10 December 1993
Alternative
designations
1993 X1, 2000 T2
Orbital characteristics A
Aphelion4.856927
Perihelion2.756415
Semi-major axis3.806671
Eccentricity0.275899
Orbital period7.43
Inclination2.3673°
Dimensions0.42 km[2]
Last perihelionFebruary 27, 2016[1]
September 22, 2008
Next perihelion2023-Dec-06 (Horizons)

147P/Kushida–Muramatsu is a quasi-Hilda[3] comet discovered in 1993 by Japanese astronomers Yoshio Kushida and Osamu Muramatsu.

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 May 14, 1949, and July 15, 1962, (12.17+0.29
−0.27
years).[3][4] It is the fifth such object known to have been captured.[3][5]

It is thought that quasi-Hilda comets may be escaped Hilda asteroids.[3] Comet Shoemaker–Levy 9 is a more famous example of a quasi-Hilda comet.[3]

References


  1. ^ "147P/Kushida-Muramatsu Orbit" . Minor Planet Center. Retrieved 2014-06-18.
  2. ^ "JPL Small-Body Database Browser: 147P/Kushida-Muramatsu" (last observation: 2009-02-22). Jet Propulsion Laboratory. Retrieved 2019-06-01.
  3. ^ a b c d e Ohtsuka, Katsuhito; Yoshikawa, M.; Asher, D. J.; Arakida, H.; Arakida, H. (October 2008). "Quasi-Hilda comet 147P/Kushida-Muramatsu. Another long temporary satellite capture by Jupiter". Astronomy and Astrophysics. 489 (3): 1355–1362. arXiv:0808.2277 . Bibcode:2008A&A...489.1355O . doi:10.1051/0004-6361:200810321 .
  4. ^ MacGregor Campbell (14 September 2009). "Jupiter had brief encounter with icy companion" . New Scientist. Retrieved 14 September 2009.
  5. ^ Kerensa McElroy (14 September 2009). "Captured comet becomes moon of Jupiter" . Cosmos Online. Archived from the original on 17 September 2009. Retrieved 14 September 2009.

External links


Numbered comets
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146P/Shoemaker–LINEAR
147P/Kushida–Muramatsu Next
148P/Anderson–LINEAR









Categories: Cometary object articles | Astronomical objects discovered in 1993 | Encke-type comets | Periodic comets | Hilda asteroids | Jupiter | Comets in 2016 | Comet stubs




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