112P/Urata–Niijima
| Discovery | |
|---|---|
| Discovered by | T. Niijima and T. Urata |
| Discovery date | October 30, 1986 |
| Designations | |
| 1986 UD, 1993 U1 | |
| Orbital characteristics | |
| Epoch | November 1, 2006 |
| Perihelion | 1.465 AU |
| Semi-major axis | 3.542 AU |
| Eccentricity | 0.586 |
| Orbital period | 6.67 a |
| Inclination | 24.1675° |
| Last perihelion | February 7, 2020[1] June 24, 2013[2] October 29, 2006 |
| Next perihelion | 2026-Sep-21 (JPL Horizons last obs 2020-04-19) |
Comet Urata-Niijima is a periodic comet in the Solar System discovered by Japanese astronomers Tsuneo Niijima and Takeshi Urata on October 30, 1986, at Ojima, the first orbit was calculated by Brian G. Marsden on November 5 giving an orbital period of 6.42 years.
On October 20, 1993, the comet was recovered by J. V. Scotti (Spacewatch, Kitt Peak Observatory, Arizona, United States), and on the next return on March 4, 2000, by Philippe. L. Lamy and Harold. A. Weaver using the Hubble Space Telescope.
References
- ^ "112P/Urata-Niijima Orbit". Minor Planet Center. Retrieved 2014-06-17.
- ^ Syuichi Nakano (2010-04-08). "112P/Urata-Niijima (NK 1906)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-24.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 112P at Kronk's Cometography
- 112P at Kazuo Kinoshita's Comets
- 112P at Seiichi Yoshida's Comet Catalog
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