Plutino

As Plutinos, not to be confused with Plutoiden, those Kuiper belt objects are referred to in astronomy, whose orbital elements with those of Pluto are comparable. These orbits are stabilized by a 3:2 resonance to the orbit of the planet Neptune, that is, during three Neptunumläufe they orbit the sun twice. This synchronization can be avoided close encounters with Neptune, so that only those orbits are stable within this outermost giant planet for a long time. The Plutinos addition to the Twotinos the known resonant Kuiper Belt objects.

The first four Plutinos were discovered on four consecutive days from 14 to 17 September 1993 - 63 years after Pluto. Currently, it is estimated the number of larger Plutinos (over 100 miles) to more than 1000. However, these estimates are still very vague as there is little data on the Kuiper Belt Objects ( KBO ) are present.

Presumed cause

During the formation of the solar system ( Kuiper belt and Oort cloud) were thrown through the gas giant planetesimals in the outer region, thus enlarged Neptune's orbit. Simulation calculations could be proved that he in his path already existing objects has " shuffled " in the 3:2 resonance as a snow plow on.

Known large Plutinos

653805
de