2011 HM102
Neptune trojan / From Wikipedia, the free encyclopedia
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2011 HM102 is the ninth Neptune trojan discovered. It was first observed on 29 April 2011, during the New Horizons KBO Search (268) using the Magellan II (Clay) Telescope at Las Campanas Observatory in Chile.[2][5] It has the same orbital period as Neptune and orbits at the L5 Lagrangian point about 60° backwards of Neptune.[3]
Quick Facts Discovery, Discovered by ...
Discovery[1][2] | |
---|---|
Discovered by | New Horizons KBO Search |
Discovery site | Las Campanas Obs. |
Discovery date | 29 April 2011 (first observed only) |
Designations | |
2011 HM102 | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 6 | |
Observation arc | (354 days) |
Aphelion | 32.778 AU |
Perihelion | 27.660 AU |
30.219 AU | |
Eccentricity | 0.0847 |
166.12 yr (60,675 days) | |
33.571° | |
0° 0m 21.24s / day | |
Inclination | 29.348° |
100.97° | |
151.24° | |
Physical characteristics | |
Dimensions | 100 km (est. at 0.10)[4] |
8.1[1] | |
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