2005 TN53
From Wikipedia, the free encyclopedia
Neptune trojans are resonant trans-Neptunian objects (TNO) in a 1:1 mean-motion orbital resonance with Neptune. These Trojans have a semi-major axis and an orbital period very similar to Neptune's (30.10 AU; 164.8 years).
2005 TN53 belongs to the larger L4 group, which leads 60° ahead Neptune's orbit. It orbits the Sun with a semi-major axis of 30.014 AU at a distance of 28.1–31.9 AU once every 164 years and 5 months (60,059 days). Its orbit has an eccentricity of 0.06 and an inclination of 25° with respect to the ecliptic.[1]
It has the same orbital period as Neptune and orbits at the L4 Lagrangian point about 60° ahead of Neptune.[4] It has an inclination of 25 degrees.[1][4]
Physical characteristics
Diameter
The discoverers estimate that 2005 TN53 has a mean-diameter of 80 kilometers based on a magnitude of 23.7.[6] Based on a generic magnitude-to-diameter conversion, it measures approximately 68 kilometers in diameter using an absolute magnitude of 9.0 and an assumed albedo of 0.10.[5]
