121P/Shoemaker–Holt
121P/Shoemaker–Holt, also known as Shoemaker-Holt 2, is a periodic comet in the Solar System.
| Discovery | |
|---|---|
| Discovered by | Carolyn S. Shoemaker Eugene Merle Shoemaker Henry E. Holt |
| Discovery date | March 9, 1989 |
| Designations | |
| 1988 XI; 1995 Q3 | |
| Orbital characteristics | |
| Epoch | March 6, 2006 |
| Aphelion | 5.376 AU |
| Perihelion | 2.65 AU |
| Semi-major axis | 4.013 AU |
| Eccentricity | 0.3396 |
| Orbital period | 8.039 a |
| Inclination | 17.7218° |
| Last perihelion | September 8, 2013[1] September 1, 2004 |
| Next perihelion | 2023-Jun-28[2] |
References
- Syuichi Nakano (2010-04-28). "121P/Shoemaker-Holt 2 (NK 1925)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-25.
- "121P/Shoemaker-Holt Orbit". Minor Planet Center. Retrieved 2014-06-17.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 121P/Shoemaker-Holt 2 – Seiichi Yoshida @ aerith.net
- 121P at Kronk's Cometography
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