(148209) 2000 CR105
2000 CR105 is the third most distant known object in the solar system after 136199 Eris and 90377 Sedna. It circles the sun in a highly eccentric orbit every 3240 years at an average distance of 219 astronomical units (1 A.U. being equal to the mean earth-sun distance of about 150 million kilometers). 2000 CR105 has an orbital inclination of about 22.75 degrees from the solar plane, its perihelion is 44.3 A.U., and its aphelion is about 397 A.U.
2000 CR105 has a diameter of around 265 km. This small size will probably prevent it from ever qualifying as a dwarf planet.
2000 CR105 and Sedna differ from other scattered disc objects in that at their perihelion distances they are not within the gravitational influence of the planet Neptune. It is something of a mystery how these objects came to be in their current far flung orbits. One theory states that they were pulled from their original positions by a passing star or a very distant and undiscovered giant planet.
External links
- Orbital Simulation from JPL (Java)
- Orbit Determination of 2000 CR105
- World Book: Worlds Beyond Pluto
See also
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