Thursday, April 11, 2019
HELP ASTRONOMERS NAME THE LARGEST UNNAMED WORLD IN OUR SOLAR SYSTEM.
2007 OR10's orbit places it in the Kuiper belt, the sea of icy planetesimals that orbit beyond Neptune. Over 3000 Kuiper belt objects (KBOs) are known to date. 2007 OR10 resides on an elliptical orbit. It makes its closest approach to the Sun at 33 au (1 au is the mean distance between the Earth and Sun), and its furthest point from the Sun is at a distance of 101 au. 2007 OR10 has a typical orbit of a scattered disk Kuiper belt object, one that was emplaced into the Kuiper belt during the migration of our Solar System's giant planets, including Neptune, through gravitational scattering. 2007 OR10 appears to be in the 10:3 mean motion resonance with Neptune (2007 OR10 completes 3 orbits for every 10 Neptune orbits).
Image - 2007 OR10's orbit - Credit: Produced by kheider using the Gravity Simulator created by Tony Dunn.