87P/Bus
Comet 87P/Bus is a periodic comet with an orbital period of 6.5 years. It fits the definition of an Encke-type comet with (TJupiter > 3; a < aJupiter). It was discovered by Schelte J. Bus in 1981 on a plate taken with the 1.2m UK Schmidt telescope at Siding Spring, Australia. The discovery was announced in IAU Circular 3578 on March 4, 1981.
| Discovery | |
|---|---|
| Discovered by | Schelte J. Bus |
| Discovery date | 1981 |
| Designations | |
| Bus/1981b; Bus/1981 XI; | |
| Orbital characteristics | |
| Epoch | March 6, 2006 |
| Aphelion | 4.798 AU |
| Perihelion | 2.174 AU |
| Semi-major axis | 3.486 AU |
| Eccentricity | 0.3764 |
| Orbital period | 6.509 a |
| Inclination | 2.5768° |
| Last perihelion | May 9, 2020[1] December 19, 2013[2][3] July 7, 2007 |
| Next perihelion | 2029-Jun-07[4] |
It has been observed on each of its subsequent apparitions, most recently in 2020.[5]
References
- "87P/Bus Orbit". Minor Planet Center. Retrieved 2014-06-16.
- Syuichi Nakano (2010-04-29). "87P/Bus (NK 1931)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-18.
- 87P past, present and future orbital elements
- "Horizons Batch for 87P/Bus (90000883) on 2029-Jun-07" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2022-06-27. (JPL#K203/18 Soln.date: 2020-Sep-28)
- "87/P Bus". Seiichi Yoshida. Retrieved 15 May 2015.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 87P/Bus – Seiichi Yoshida @ aerith.net
.png.webp)
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.