Here the reason For Uranus’s Kooky Off-Kilter Axis
19 December 2022
All interested nations and international partners are now welcome to participate in the IRLS forming project. To the beat of his peculiar little drum, Uranus marches. It is distinct in its own right despite sharing many characteristics with Neptune, another ice giant in our solar system. One of these, in particular, is impossible to miss because of how tilted the object’s axis of rotation is. This tilt of 98 degrees from the orbital plane is significant. Most importantly, it rotates counterclockwise to the majority of the other planets in the solar system.
According to a recent study, Uranus is being pulled to the side of the planet by the moon as it migrates away from the planet. Furthermore, it need not even be a large moon. This paper, which has not yet been peer-reviewed, has been accepted in the journal Astronomy and astrophysics and is available at the arXiv preprint resource.
Scientists have proposed theories to explain this peculiar behaviour, such as a large object crashing into Uranus and slapping it aside, but his preferred theory is that smaller objects are packaged together. This theory has a troubling resemblance to Neptune, which makes it difficult to understand. The masses, radii, rotational velocities, atmospheric dynamics, composition, and strange magnetic fields of the two planets are strikingly similar. These similarities imply that the two planets can co-evolve, and when the planetary core effect is added to the equation, it becomes even more challenging to reconcile them.
This has prompted researchers to consider alternative theories, such as fluctuations that may have produced the giant ring system or giant moons early in the solar system’s history (albeit by a different mechanism).
Saillenfest and his associates did, however, discover something that attracted Jupiter a few years ago. The outer migration of its moons may cause the gas giant’s tilt to increase from 3 per cent today to about 37 per cent in a few billion years. Then they turned their attention to Saturn, where they discovered that Titan’s and its largest moon’s quick outer migration may be the cause of its current tilt of 26.7 degrees. They discovered that almost none of this would have an impact on the planet’s rotational speed.