What is Trans-Neptunian object?
[[Image:2006-16-a-full-1-.jpg|thumb|right|[[Eris (dwarf planet)|Eris]] and its moon [[Dysnomia (moon)|Dysnomia]] are both Trans-Neptunian Objects]] '''Trans-Neptunian object''' or '''TNO''' is a name [[astronomers]] give to any [[minor planet]] in the [[Solar System]] which [[orbit]]s (travels around) the [[Sun]] beyond the [[planet]] [[Neptune]]. There are over a thousand Trans-Neptunian objects.<ref>Minor Planet Center. [http://www.minorplanetcenter.org/iau/lists/TNOs.html]</ref> Many are in the [[Kuiper belt]]. == References == {{reflist}} {{Solar System}} {{sci-stub}} [[Category:Solar System]]