Onetino
In Astronomy the term onetino refers to a Kuiper Belt object in a one to one orbital resonance with Planet Neptune.[1][2] These objects have had their orbits perturbed, by Neptune, so they circle Sol, our sun, once, in the same time it takes Neptune to circle once.
Astronomers recognize objects in a two to three orbital resonance, like Pluto, and call them plutinos.[2] Objects in a two to one are called twotinos. Objects in other resonances have also been discovered.
As of 2009[update] six Neptunian Trojans had been discovered. They are onetinos.
References
[edit | edit source]- ↑ A. J. C. Almeida; N. Peixinho; A. C. M. Correia (2009-10-08). "Neptune Trojans and Plutinos: colors, sizes, dynamics, and their possible collisions". Astronomy & Astrophysics. EDP Sciences. 508 (2): 1021–1030. doi:10.1051/0004-6361/200911943. ISSN 0004-6361. Archived from the original on 2025-02-20. Retrieved 2026-07-09.
- ↑ 2.0 2.1
Yusuke Tsukamoto (2011). "The self gravity effect on the orbital stability of Twotinos". Icarus (Journal). Elsevier BV. 212 (2): 911–919. doi:10.1016/j.icarus.2011.01.028. ISSN 0019-1035. Retrieved 2026-07-09.
Malhotra (1995) proposed Resonant sweeping model in which Neptune migrate several AU capturing primordial TNOs into its MMR. This model firstly explain the Pluto’s peculiar orbit and successfully predict the existence of Plutinos, Twotinos, and scattered TNOs.