![]() 2000 CR105 is seen as a smaller orbit center left in red with hypothetical
Planet Nine in green | |
Discovery [1] | |
---|---|
Discovered by | Marc W. Buie |
Discovery date | 6 February 2000 |
Designations | |
2000 CR105 | |
| |
Orbital characteristics [2] [3] | |
Epoch 13 January 2016 ( JD 2457400.5) | |
Uncertainty parameter 2 | |
Observation arc | 5547 days (15.19 yr) |
Earliest precovery date | 6 February 2000 |
Aphelion | 411.62 AU (61.577 Tm) (Q) |
Perihelion | 44.286 AU (6.6251 Tm) (q) |
227.95 AU (34.101 Tm) (a) | |
Eccentricity | 0.80572 (e) |
Average
orbital speed | 1.63 km/ s |
5.28267 ° (M) | |
0° 0m 1.031s / day (n) | |
Inclination | 22.71773° (i) |
128.24627° (Ω) | |
317.219° (ω) | |
Physical characteristics | |
Dimensions | |
0.04 (expected) [5] | |
Temperature | ~ 19 K |
23.8 [8] | |
6.3 [3] | |
(148209) 2000 CR105 is a trans-Neptunian object and the tenth-most-distant known object in the Solar System as of 2015 [update]. Considered a detached object, [9] [10] it orbits the Sun in a highly eccentric orbit every 3,305 years at an average distance of 222 astronomical units (AU). [3]
Mike Brown's website lists it as a possible dwarf planet with a diameter of 328 kilometres (204 mi) based on an assumed albedo of 0.04 . [5] The albedo is expected to be low because the object has a blue (neutral) color. [5] However, if the albedo is higher, the object could easily be half that size.
(148209) 2000 CR105 and Sedna differ from scattered-disc objects in that they are not within the gravitational influence of the planet Neptune even at their perihelion distances (closest approaches to the Sun). It is something of a mystery as to how these objects came to be in their current, far-flung orbits. Several hypotheses have been put forward:
(148209) 2000 CR105 is the first object discovered in the Solar System to have a semi-major axis exceeding 150 AU, a perihelion beyond Neptune, and an argument of perihelion of 340°±55°. [14] It is one of eleven objects known with a semi-major axis greater than 100 AU and perihelion beyond 42 AU. [15] It may be influenced by Planet Nine. [16]
![]() 2000 CR105 is seen as a smaller orbit center left in red with hypothetical
Planet Nine in green | |
Discovery [1] | |
---|---|
Discovered by | Marc W. Buie |
Discovery date | 6 February 2000 |
Designations | |
2000 CR105 | |
| |
Orbital characteristics [2] [3] | |
Epoch 13 January 2016 ( JD 2457400.5) | |
Uncertainty parameter 2 | |
Observation arc | 5547 days (15.19 yr) |
Earliest precovery date | 6 February 2000 |
Aphelion | 411.62 AU (61.577 Tm) (Q) |
Perihelion | 44.286 AU (6.6251 Tm) (q) |
227.95 AU (34.101 Tm) (a) | |
Eccentricity | 0.80572 (e) |
Average
orbital speed | 1.63 km/ s |
5.28267 ° (M) | |
0° 0m 1.031s / day (n) | |
Inclination | 22.71773° (i) |
128.24627° (Ω) | |
317.219° (ω) | |
Physical characteristics | |
Dimensions | |
0.04 (expected) [5] | |
Temperature | ~ 19 K |
23.8 [8] | |
6.3 [3] | |
(148209) 2000 CR105 is a trans-Neptunian object and the tenth-most-distant known object in the Solar System as of 2015 [update]. Considered a detached object, [9] [10] it orbits the Sun in a highly eccentric orbit every 3,305 years at an average distance of 222 astronomical units (AU). [3]
Mike Brown's website lists it as a possible dwarf planet with a diameter of 328 kilometres (204 mi) based on an assumed albedo of 0.04 . [5] The albedo is expected to be low because the object has a blue (neutral) color. [5] However, if the albedo is higher, the object could easily be half that size.
(148209) 2000 CR105 and Sedna differ from scattered-disc objects in that they are not within the gravitational influence of the planet Neptune even at their perihelion distances (closest approaches to the Sun). It is something of a mystery as to how these objects came to be in their current, far-flung orbits. Several hypotheses have been put forward:
(148209) 2000 CR105 is the first object discovered in the Solar System to have a semi-major axis exceeding 150 AU, a perihelion beyond Neptune, and an argument of perihelion of 340°±55°. [14] It is one of eleven objects known with a semi-major axis greater than 100 AU and perihelion beyond 42 AU. [15] It may be influenced by Planet Nine. [16]