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: Halley's Comet
Wikimedia FoundationHalley's Comet, lead section, 1705 periodicity sentenceQuote, Halley's Comet, lead section, 1705 periodicity sentence
it was not until 1705 that the English astronomer Edmond Halley understood that these appearances were re-appearances of the same comet.
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