Discovery[1][2][3] | |
---|---|
Discovered by | |
Discovery site | Las Campanas Obs. |
Discovery date | 7 October 2005 (discovery: first observation only) |
Designations | |
2005 TN53 | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 4 | |
Observation arc | 8.00 yr (2,921 days) |
Aphelion | 31.940 AU |
Perihelion | 28.088 AU |
30.014 AU | |
Eccentricity | 0.0642 |
164.43 yr (60,059 days) | |
301.81° | |
0° 0m 21.6s / day | |
Inclination | 25.044° |
9.3277° | |
90.167° | |
Physical characteristics | |
Dimensions | |
23.7[6] | |
9.0[1] | |
2005 TN53 is an inclined Neptune trojan leading Neptune's orbit in the outer Solar System, approximately 80 kilometers in diameter. It was first observed on 7 October 2005, by American astronomers Scott Sheppard and Chad Trujillo at Las Campanas Observatory in the Atacama desert of Chile.[2][3] It was the third such body to be discovered, and the first with a significant orbital inclination, which showed that the population as a whole is very dynamically excited.
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