Astronomy:(126155) 2001 YJ140
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| Discovery | |
|---|---|
| Discovered by | M. E. Brown C. Trujillo Glenn Smith |
| Discovery site | Palomar Obs. |
| Discovery date | 20 December 2001 |
| Designations | |
| (126155) 2001 YJ140 | |
| none | |
| Minor planet category | TNO · plutino |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 2455 days (6.72 yr) |
| |{{{apsis}}}|helion}} | 51.307 astronomical unit|AU (7.6754 Tm) |
| |{{{apsis}}}|helion}} | 27.906 AU (4.1747 Tm) |
| 39.606 AU (5.9250 Tm) | |
| Eccentricity | 0.29542 |
| Orbital period | 249.26 yr (91043.2 d) |
| Mean anomaly | 10.650° |
| Mean motion | 0° 0m 14.235s / day |
| Inclination | 5.9691° |
| Longitude of ascending node | 319.51° |
| 129.91° | |
| Physical characteristics | |
| Dimensions | 154 km (Johnston's Archive) |
| Absolute magnitude (H) | 7.3 |
(126155) 2001 YJ140, provisionally known as 2001 YJ140, is a resonant trans-Neptunian object from the outermost regions of the Solar System, approximately 154 kilometers in diameter. It discovered on 20 December 2001, by American astronomers Chad Trujillo, Glenn Smith and Michael E. Brown at the Palomar Observatory in California.[1]
Orbit and rotation
2001 YJ140 is classified as a plutino. Its orbit has a semi-major axis of 42.396 AU and an orbital period of about 249 years. Perihelion leads to 27.881 AU from the Sun and its aphelion in the distance of 51.348 AU.[2][3]
References
Sources
External links
- (126155) 2001 YJ140 at AstDyS-2, Asteroids—Dynamic Site
- (126155) 2001 YJ140 at the JPL Small-Body Database
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