2015 RY245, also known as o5s13, is a trans-Neptunian object from the scattered disc of the outermost reaches of the Solar System, approximately 78 kilometers in diameter. It was discovered on 9 September 2015, by the Outer Solar System Origins Survey using the Canada–France–Hawaii Telescope at Mauna Kea Observatories, Hawaii, United States.[2]
It is one a small number of detached objects with perihelion distances of 30 AUs or more, and semi-major axes of 200 AU or more.[5] Such objects can not reach such orbits without some perturbing object, which lead to the speculation of planet nine.
References
- ^ a b c d "JPL Small-Body Database Browser: (2015 RY245)" (2017-01-02 last obs.). Jet Propulsion Laboratory. Retrieved 2 August 2017.
- ^ a b "2015 RY245". Minor Planet Center. Retrieved 2 August 2017.
- ^ Shankman, Cory; et al. (2017). "OSSOS. VI. Striking Biases in the Detection of Large Semimajor Axis Trans-Neptunian Objects". The Astronomical Journal. 154 (2): 50. arXiv:1706.05348. Bibcode:2017AJ....154...50S. doi:10.3847/1538-3881/aa7aed. hdl:10150/625487. S2CID 3535702.
- ^ a b "List of Known Trans-Neptunian Objects". Johnston's Archive. 22 July 2017. Retrieved 2 August 2017.
- ^ minorplanetcenter.net: q>30, a>200
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
- 2015 RY245 at the Minor Planet Center
- 2015 RY245 at the JPL Small-Body Database
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