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Trans-Neptunian object - Wikipedia
A trans-Neptunian object (TNO), also written transneptunian object, is any minor planet in the Solar System that orbits the Sun at a greater average distance than Neptune, which has an orbital semi-major axis of 30.1 astronomical units (AU). Typically, TNOs are further divided into the classical and resonant … 展开
Discovery of Pluto
The orbit of each of the planets is slightly affected by the gravitational influences of the other planets. Discrepancies in the early 1900s between the … 展开Given the apparent magnitude (>20) of all but the biggest trans-Neptunian objects, the physical studies are limited to the following: 展开
Among the extreme trans-Neptunian objects are three high-perihelion objects classified as sednoids: 90377 Sedna, 2012 VP113, and 541132 Leleākūhonua. They are distant 展开
According to their distance from the Sun and their orbital parameters, TNOs are classified in two large groups: the Kuiper belt objects (KBOs) and the scattered disc objects (SDOs). The diagram to the right illustrates the distribution of known trans-Neptunian objects (up to … 展开
The only mission to date that primarily targeted a trans-Neptunian object was NASA's New Horizons, which was launched in January 2006 and flew by the Pluto system in July 2015 and 486958 Arrokoth in January 2019.
In 2011, a design study … 展开CC-BY-SA 许可证中的维基百科文本 List of trans-Neptunian objects - Wikipedia
Extreme trans-Neptunian object - Wikipedia
Kuiper Belt: Facts - NASA Science
网页The Kuiper Belt is an enormous, donut-shaped volume of space in the outer solar system. While there are many icy bodies in this region that we broadly refer to as Kuiper Belt Objects (KBOs) or trans-Neptunian objects …
Trans-Neptunian objects: More than meets the ice
网页2023年11月15日 · Planetary astronomers searching the Outer Solar System for new worlds have a fundamental problem: One can discover the most fascinating, most compelling trans-Neptunian object (TNO) and it will …
The Kuiper Belt - Science@NASA
网页There may be millions of other icy worlds in the Kuiper Belt that were left over from the formation of our solar system. Scientists call these worlds Kuiper Belt objects (KBOs), or trans-Neptunian objects (TNOs). Trans …
Trans-Neptunian object - Simple English Wikipedia, the free …
Trans-Neptunian Objects: Our Solar System's Periphery …
网页2023年11月24日 · This periphery starts beyond Neptune’s orbit and is home to many objects, called trans-Neptunian objects (TNOs). In this article, we will take a closer look at the different types of TNOs and their …
Solar System/Trans-Neptunian objects - Wikibooks, open books …
486958 Arrokoth - Wikipedia
网页486958 Arrokoth (provisional designation 2014 MU 69; formerly nicknamed Ultima Thule [a]) is a trans-Neptunian object located in the Kuiper belt. Arrokoth became the farthest and most primitive object in the …
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