Plutino

A plutino is an object in outer space that has an orbit like Pluto's orbit. Plutinos are about 39 or 40 AU from the Sun.

Literature

Weintraub, David. Is Pluto a Planet? Princeton, NJ, Princeton University Press; 2007.

Some of the first known plutinos compared in size, albedo and colour
The distribution of Plutinos, and relative sizes, drawn 1 million times larger.
The motions of Orcus and Pluto in a rotating frame with a period equal to Neptune's orbital period (holding Neptune stationary). Pluto is grey, Orcus is red, and Neptune is the white (stationary) dot at 5 o'clock. Uranus is blue, Saturn yellow, and Jupiter red.
Orbits and sizes of the larger plutinos (and the reference non-plutino 119951_{2002 KX}). Orbital eccentricity is represented by segments extending horizontally from perihelion to aphelion; inclination is shown on the vertical axis.
The distribution of plutinos (and the reference non-plutino 2002 KX₁₄). Small inserts show histograms for the distributions of orbital inclination and eccentricity.

This short article about science can be made longer. You can help Wikipedia by adding to it.