143P/Kowal–Mrkos
< 143P
| Discovery | |
|---|---|
| Discovered by | Charles T. Kowal Antonín Mrkos |
| Discovery site | Palomar Observatory Klet' Observatory |
| Discovery date | 2 May 1984 |
| Designations | |
| |
| 1984 X, 1984n | |
| Orbital characteristics | |
| Epoch | 5 May 2025 (JD 2460800.5) |
| Observation arc | 40.83 years |
| Earliest precovery date | 23 April 1984 |
| Number of observations | 1,231 |
| Aphelion | 6.618 AU |
| Perihelion | 2.942 AU |
| Semi-major axis | 4.780 AU |
| Eccentricity | 0.38458 |
| Orbital period | 10.451 years |
| Inclination | 5.472° |
| 242.62° | |
| Argument of periapsis | 304.32° |
| Mean anomaly | 303.47° |
| Last perihelion | 7 May 2018 |
| Next perihelion | 28 December 2026 |
| TJupiter | 2.864 |
| Earth MOID | 1.537 AU |
| Jupiter MOID | 0.019 AU |
| Physical characteristics | |
Mean radius | 5.7±0.6 km |
| 17.21±0.10 hours | |
| (V–R) = 0.58±0.02 | |
| Comet total magnitude (M1) | 14.5 |
143P/Kowal–Mrkos is a periodic comet in the Solar System.