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== Notable objects == {{main list|List of trans-Neptunian objects|List of unnumbered trans-Neptunian objects}} {| class="wikitable sortable" style="font-size: 0.9em; width: 80%" ! width=130 | Object !! Description |- | [[Pluto|134340 Pluto]] || A dwarf planet, the first and largest trans-Neptunian object (TNO) discovered. It is the only TNO known to have an atmosphere. Hosts a [[Moons of Pluto|system of five satellites]] and is the prototype [[plutino]]. |- | [[15760 Albion]] || The prototype [[classical Kuiper belt object]] (KBO), the first TNO discovered after Pluto |- | [[(385185) 1993 RO]] || The next [[plutino]] discovered after Pluto |- | {{mpl|(15874) 1996 TL|66}} || The first object identified as a [[scattered disc]] object. |- | {{mpl|1998 WW|31}} || The first binary KBO discovered after Pluto. |- | [[47171 Lempo]] || A plutino and triple system consisting of a central binary pair of similar size, and a third outer circumbinary satellite. |- | [[20000 Varuna]] || A large classical KBO, known for its rapid rotation (6.3 h) and elongated shape. |- | [[28978 Ixion]] || A large plutino, was considered to be among the largest KBOs upon discovery. |- | [[50000 Quaoar]] || A dwarf planet and a large classical KBO. It has an elongated shape, albeit less elongated than Haumea. It has one known moon, [[Weywot (satellite)|Weywot]], and two known rings that are both outside Quaoar's [[Roche limit]]. |- | [[90377 Sedna]] || A distant dwarf planet, proposed for a new category named ''extended scattered disc'' (E-SDO),<ref name="Gladman">{{cite web|url=http://www.obs-nice.fr/gladman/cr105.html|title=Evidence for an Extended Scattered Disk?|work=obs-nice.fr}}</ref> ''detached objects'',<ref name="Jewitt2006">{{cite book |author-link=David Jewitt |first1=D. |last1=Jewitt |first2=A. |last2=Delsanti |chapter=The Solar System Beyond The Planets |title=Solar System Update : Topical and Timely Reviews in Solar System Sciences |edition=Springer-Praxis |isbn=978-3-540-26056-1 |date=2006 |publisher=Springer |chapter-url=http://www.ifa.hawaii.edu/faculty/jewitt/papers/2006/DJ06.pdf }}</ref> ''distant detached objects'' (DDO)<ref name="Gomez 2006">{{cite journal |first1=Rodney S. |last1=Gomes |first2=John J. |last2=Matese |first3=Jack J. |last3=Lissauer |title=A Distant Planetary-Mass Solar Companion May Have Produced Distant Detached Objects |journal=[[Icarus (journal)|Icarus]] |date=2006 |volume=184 |issue=2 |pages=589β601 |url=http://staff.on.br/rodneyg/companion/solar_companion.pdf |doi=10.1016/j.icarus.2006.05.026 |bibcode=2006Icar..184..589G |url-status=dead |archive-url=https://web.archive.org/web/20070108051810/http://staff.on.br/rodneyg/companion/solar_companion.pdf |archive-date=2007-01-08 }}</ref> or ''scattered-extended'' in the formal classification by [[Deep Ecliptic Survey|DES]].<ref name="DES_Elliot2006"/> |- | [[90482 Orcus]] || A dwarf planet and the second-largest known plutino, after Pluto. Has a relatively large satellite, [[Vanth (moon)|Vanth]]. |- | [[136108 Haumea]] || A dwarf planet, the third-largest-known TNO. Notable for its two known satellites, rings, and unusually short rotation period (3.9 h). It is the most massive known member of the [[Haumea family|Haumea collisional family]].<ref name="BrownBarkume2007">{{cite journal |last=Brown |first=Michael E. |author2=Barkume, Kristina M. |author3=Ragozzine, Darin |author4= Schaller, Emily L. |date=2007 |title=A collisional family of icy objects in the Kuiper belt |journal=Nature |volume=446 |issue=7133 |pages=294β296 |doi=10.1038/nature05619 |pmid=17361177 |bibcode = 2007Natur.446..294B |s2cid=4430027 |url=https://authors.library.caltech.edu/34346/2/nature05619-s1.pdf }}</ref><ref name=pairs>{{cite journal |last1=de la Fuente Marcos |first1=Carlos |last2=de la Fuente Marcos |first2=RaΓΊl |title=Dynamically correlated minor bodies in the outer Solar system |journal=[[Monthly Notices of the Royal Astronomical Society]] |date=11 February 2018 |volume=474 |issue=1 |arxiv=1710.07610 |doi=10.1093/mnras/stx2765 |pages=838β846 |doi-access=free |bibcode = 2018MNRAS.474..838D }}</ref> |- | [[136472 Makemake]] || A dwarf planet, a classical KBO, and the fourth-largest known TNO<ref>{{cite web|url=http://www.minorplanetcenter.org/mpec/K05/K05O42.html |title=MPEC 2005-O42 : 2005 FY9 |publisher=Minorplanetcenter.org |access-date=2013-10-07}}</ref> |- | [[136199 Eris]] || A dwarf planet, a scattered disc object, and currently the most massive known TNO. It has one known satellite, [[Dysnomia (moon)|Dysnomia]]. |- | {{mpl|612911|2004 XR|190}} || A [[detached object]] whose orbit is highly inclined and lies outside the classical Kuiper belt. |- | [[225088 Gonggong]] || A dwarf planet and the second-largest discovered scattered-disc object. Has one known satellite, [[Xiangliu (satellite)|Xiangliu]]. |- | {{mpl|(528219) 2008 KV|42}} || The first retrograde TNO, having an unusually high orbital inclination of 104Β°. |- | [[471325 Taowu]] || Another retrograde TNO with an unusually high orbital inclination of 110Β°.<ref>{{cite web| url=https://www.newscientist.com/article/2100700-mystery-object-in-weird-orbit-beyond-neptune-cannot-be-explained | work=New Scientist | title=Mystery object in weird orbit beyond Neptune cannot be explained | date=2016-08-10 | access-date=2016-08-11}}</ref> |- | {{mpl|2012 VP|113}} || A sednoid with a large perihelion of 80 AU from the Sun (50 AU beyond Neptune). |- |[[486958 Arrokoth]] || A contact binary classical KBO encountered by the ''[[New Horizons]]'' spacecraft in 2019. |- |{{mpl|2018 VG|18}} || A scattered disc object, and the first TNO discovered while beyond {{convert|100|AU|e9km|abbr=unit}} from the Sun. |- |{{mpl|2018 AG|37}} || The most distant observable TNO at {{convert|132|AU|e9km|abbr=unit}} from the Sun. |}
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