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A mean-motion orbital resonance ... Kepler-1649 contains two Earth-size planets close to a 9:4 resonance ... (particularly the 2:5 resonance) within the Kuiper belt.
There are a large number of resonant subgroups, the largest being the twotinos (1:2 resonance) and the plutinos (2:3 resonance), named after their most prominent member, Pluto. Members of the classical Edgeworth–Kuiper belt include 15760 Albion, Quaoar and Makemake. Another subclass of Kuiper belt objects is the so-called scattering objects (SO).
In astronomy, a resonant trans-Neptunian object is a trans-Neptunian object (TNO) in mean-motion orbital resonance with Neptune.The orbital periods of the resonant objects are in a simple integer relations with the period of Neptune, e.g. 1:2, 2:3, etc. Resonant TNOs can be either part of the main Kuiper belt population, or the more distant scattered disc population.
Main-belt asteroids have orbital elements constrained by (2.0 AU < a < 3.2 AU; q > 1.666 AU) according to JPL Solar System Dynamics (JPLSSD). [98] Many TNOs are omitted from this list as their sizes are poorly known.
The main body of the belt is generally accepted to extend from the 2:3 mean-motion resonance at 39.5 AU to the 1:2 resonance at roughly 48 AU. [44] The Kuiper belt is quite thick, with the main concentration extending as much as ten degrees outside the ecliptic plane and a more diffuse distribution of objects extending several times farther.
Q1R is located in between the 6:1 mean-motion orbital resonance with Quaoar's moon Weywot at 4,021 ± 57 km (2,499 ± 35 mi) and Quaoar's 1:3 spin-orbit resonance at 4,197 ± 58 km (2,608 ± 36 mi). The Q1R ring's coincidental location at these resonances implies they play a key role in maintaining the ring without having it accrete into a ...
Since its formation, the size distribution of the asteroid belt has remained relatively stable; no significant increase or decrease in the typical dimensions of the main-belt asteroids has occurred. [55] The 4:1 orbital resonance with Jupiter, at a radius 2.06 astronomical units (AUs), can be considered the inner boundary of the asteroid belt ...
It is primarily acted on by the 7:6 resonance with Janus and Epimetheus, with other contributions from the 5:3 resonance with Mimas and various resonances with Prometheus and Pandora. [ 111 ] [ 112 ] Other orbital resonances also excite many spiral density waves in the A Ring (and, to a lesser extent, other rings as well), which account for ...