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: Natural satellite
Wikimedia FoundationNatural satellite, Terminology sectionQuote, Natural satellite, Terminology section
Until the discovery of the Galilean satellites in 1610 there was no opportunity for referring to such objects as a class.
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