147P/Kushida–Muramatsu
147P/Kushida–Muramatsu is a quasi-Hilda[3] comet discovered in 1993 by Japanese astronomers Yoshio Kushida and Osamu Muramatsu.
| Discovery | |
|---|---|
| Discovered by | Yoshio Kushida and Osamu Muramatsu |
| Discovery date | 10 December 1993 |
| Alternative designations | 1993 X1, 2000 T2 |
| Orbital characteristics A | |
| Aphelion | 4.856927 |
| Perihelion | 2.756415 |
| Semi-major axis | 3.806671 |
| Eccentricity | 0.275899 |
| Orbital period | 7.43 |
| Inclination | 2.3673° |
| Dimensions | 0.42 km[1] |
| Last perihelion | February 27, 2016[2] September 22, 2008 |
| Next perihelion | 2023-Dec-06 (Horizons) |
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
- "JPL Small-Body Database Browser: 147P/Kushida-Muramatsu" (last observation: 2009-02-22). Jet Propulsion Laboratory. Retrieved 2019-06-01.
- "147P/Kushida-Muramatsu Orbit". Minor Planet Center. Retrieved 2014-06-18.
- 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.
- MacGregor Campbell (14 September 2009). "Jupiter had brief encounter with icy companion". New Scientist. Retrieved 14 September 2009.
- 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
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 147P/Kushida-Muramatsu – Seiichi Yoshida @ aerith.net
- 147P/Kushida-Muramatsu
| Numbered comets | ||
|---|---|---|
| Previous 146P/Shoemaker–LINEAR |
147P/Kushida–Muramatsu | Next 148P/Anderson–LINEAR |
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