172P/Yeung
| Discovery | |
|---|---|
| Discovered by | Bill Yeung |
| Discovery site | Apache Point Observatory |
| Discovery date | 21 January 2002 |
| Designations | |
| P/2001 CB40 P/2002 BV | |
| PK02B00V | |
| Orbital characteristics | |
| Epoch | 21 November 2025 (JD 2461000.5) |
| Observation arc | 31.62 years |
| Earliest precovery date | 20 October 1993 |
| Number of observations | 797 |
| Aphelion | 5.091 AU |
| Perihelion | 3.358 AU |
| Semi-major axis | 4.225 AU |
| Eccentricity | 0.20507 |
| Orbital period | 8.683 years |
| Inclination | 11.222° |
| 30.881° | |
| Argument of periapsis | 208.87° |
| Mean anomaly | 2.114° |
| Last perihelion | 2 November 2025 |
| Next perihelion | 2034 |
| TJupiter | 2.958 |
| Earth MOID | 2.232 AU |
| Jupiter MOID | 0.082 AU |
| Physical characteristics | |
Mean radius | 5.6 km (3.5 mi) |
| Comet total magnitude (M1) | 14.8 |
172P/Yeung is a Jupiter-family comet with a 6.59-year orbit around the Sun. It is the first of two comets discovered by Hong Kong/Canadian astronomer, William Kwong Yu Yeung.