The "List of unnumbered trans-Neptunian objects: 2018" refers to a compilation of trans-Neptunian objects (TNOs) that have not yet been assigned a number by the International Astronomical Union (IAU) as of the year 2018. TNOs are celestial bodies located beyond the orbit of Neptune, and they include a wide variety of objects such as dwarf planets, ice bodies, and other small solar system bodies.
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