Comets · 13
Periodic Comets
Comets that return on measured orbits, from Encke's 3.3 years to Halley's 76.
| Name | Designation | Type | Period | Discovered |
|---|---|---|---|---|
| Encke | 2P/Encke | Jupiter-family comet | 3.3 yr | 1786 |
| Grigg–Skjellerup | 26P/Grigg–Skjellerup | Jupiter-family comet | 5.3 yr | 1902 |
| Schwassmann–Wachmann 3 | 73P/Schwassmann–Wachmann 3 | Jupiter-family comet | 5.4 yr | 1930 |
| Tempel 1 | 9P/Tempel 1 | Jupiter-family comet | 5.6 yr | 1867 |
| Wild 2 | 81P/Wild 2 | Jupiter-family comet | 6.4 yr | 1978 |
| 67P/Churyumov–Gerasimenko | 67P/Churyumov–Gerasimenko | Jupiter-family comet | 6.45 yr | 1969 |
| Hartley 2 | 103P/Hartley 2 | Jupiter-family comet | 6.5 yr | 1986 |
| Giacobini–Zinner | 21P/Giacobini–Zinner | Jupiter-family comet | 6.6 yr | 1900 |
| Borrelly | 19P/Borrelly | Jupiter-family comet | 6.8 yr | 1904 |
| Tempel–Tuttle | 55P/Tempel–Tuttle | Halley-type comet | 33 yr | 1865 |
| Halley's Comet | 1P/Halley | Halley-type comet | 76 yr | — |
| Swift–Tuttle | 109P/Swift–Tuttle | Halley-type comet | 133 yr | 1862 |
| Thatcher | C/1861 G1 (Thatcher) | Long-period comet | 415 yr | 1861 |