This dimension sorts celestial objects by their basic kind, such as a planet, star, galaxy or comet. Wikipedia notes that "asteroids, moons, planets, and stars are astronomical bodies," while looser structures such as "planetary systems, star clusters, nebulae, and galaxies" count as objects in the wider sense. Browsing by object type keeps similar kinds of objects grouped together.
Facts
Comparison
Field Origin Era Object Type
Sources
1. Wikipedia: Trans-Neptunian object
Wikimedia FoundationTrans-Neptunian object, lead sectionQuote, Trans-Neptunian object, lead section
The first trans-Neptunian object to be discovered was Pluto in 1930.
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