Discovery [1] [2] | |
---|---|
Discovered by | OSSOS |
Discovery site | Mauna Kea Obs. |
Discovery date | 9 September 2015 |
Designations | |
2015 RY245 | |
o5s13 [3] | |
TNO [1] · SDO [4] | |
Orbital characteristics [1] | |
Epoch 4 September 2017 ( JD 2458000.5) | |
Uncertainty parameter 5 | |
Observation arc | 1.47 yr (538 days) |
Aphelion | 411.25 AU |
Perihelion | 31.276 AU |
221.26 AU | |
Eccentricity | 0.8586 |
3291.32 yr (1,202,155 days) | |
1.6973 ° | |
0° 0m 1.08s / day | |
Inclination | 6.0347° |
341.55° | |
354.30° | |
Physical characteristics | |
Dimensions | 78 km [4] |
24.6 | |
9.0683 [1] | |
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.
Discovery [1] [2] | |
---|---|
Discovered by | OSSOS |
Discovery site | Mauna Kea Obs. |
Discovery date | 9 September 2015 |
Designations | |
2015 RY245 | |
o5s13 [3] | |
TNO [1] · SDO [4] | |
Orbital characteristics [1] | |
Epoch 4 September 2017 ( JD 2458000.5) | |
Uncertainty parameter 5 | |
Observation arc | 1.47 yr (538 days) |
Aphelion | 411.25 AU |
Perihelion | 31.276 AU |
221.26 AU | |
Eccentricity | 0.8586 |
3291.32 yr (1,202,155 days) | |
1.6973 ° | |
0° 0m 1.08s / day | |
Inclination | 6.0347° |
341.55° | |
354.30° | |
Physical characteristics | |
Dimensions | 78 km [4] |
24.6 | |
9.0683 [1] | |
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.