22P / head
| 22P / head [i] | |
|---|---|
|
|
| Properties of the orbit ( animation ) | |
| Orbit type | short-term |
| Numerical eccentricity | 0.544 |
| Perihelion | 1.578 AU |
| Aphelion | 5.348 AU |
| Major semi-axis | 3.463 AU |
| Sidereal period | 6 a 162 d |
| Inclination of the orbit plane | 4.724 ° |
| Perihelion | May 25, 2009 |
| Physical properties of the core | |
| Medium diameter | (3.0 ± 0.4) km |
| Albedo | 0.05 ± 0.01 |
| history | |
| Explorer | August Kopff |
| Date of discovery | August 23, 1906 |
| Older name | 1906 IV, 1906e |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . Please also note the note on comet articles . | |
22P / Kopff is a short-period comet that was discovered by August Kopff in Heidelberg on August 23, 1906 . With a period of only 6 years, it is one of the tail stars with the shortest orbital period. The comet was not observed the next time it approached Earth in 1912/1913, but has been observed every time it passed through the perihelion since 1919. An approach to Jupiter in 1954 changed the flight path and shortened the orbital time around the sun.
See also
Web links
- 22P / Kopff in the Small-Body Database of the Jet Propulsion Laboratory (English).
- Pictures of 22P / Kopff (2009)
- 22P at Kronk's Cometography
- 22P at Kazuo Kinoshita's Comets
- 22P at Seiichi Yoshida's Comet Catalog