2015 RX245
The orbits of 2015 RX245 and other objects along with hypothetical Planet Nine | |
Discovery | |
---|---|
Discovered by | OSSOS |
Discovery site | Mauna Kea Obs. |
Discovery date | 8 September 2015 |
Designations | |
MPC designation | 2015 RX245 |
o5t52 | |
TNO, detached | |
Orbital characteristics | |
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 | |
Aphelion | 815 AU (barycentric) |
Perihelion | 45.48 AU |
430 AU (barycentric) | |
Eccentricity | 0.89 |
8,920 years | |
357.9° | |
0.00012° | |
Inclination | 12.2° |
8.6° | |
65.4° | |
Physical characteristics | |
Dimensions | 250km |
24.2 | |
6.2 | |
|
2015 RX245, also known as o5t52, is a Kuiper belt object (KBO) discovered by the Outer Solar System Origins Survey using the Canada–France–Hawaii Telescope on 8 September 2015.
It is one a small number of detached objects with perihelion distances of 30 AUs or more, and semi-major axes of 250 AU or more.[1] Such objects cannot reach such orbits without some perturber, which led to the speculations of Planet Nine.
References
External links
- OSSOS survey by the Canada–France–Hawaii Telescope
- OSSOS VI. Striking Biases in the detection of large semimajor axis Trans-Neptunian Objects 16 Jun 2017
- MPEC 2017-M25 : 2015 RX245
- 2015 RX245 at the JPL Small-Body Database
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