| Discovery | |
|---|---|
| Discovered by: | Carolyn S. Shoemaker Eugene Merle Shoemaker Henry E. Holt |
| Discovery date: | March 9, 1989 |
| Alternate designations: | 1988 XI; 1995 Q3 |
| Orbital characteristics A | |
| 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 2, 2004 |
| Next perihelion: | September 8, 2013 |
121P/Shoemaker-Holt, also known as Shoemaker-Holt 2, is a periodic comet in our solar system.
| Periodic comets (by number) | ||
|---|---|---|
| Previous 120P/Mueller |
121P/Shoemaker–Holt | Next 122P/de Vico |