Jupiter and the sun orbit a barycenter, too. Jupiter is a planet. | Hacker News

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naikrovek on May 21, 2025 | parent | context | favorite | on: Possible new dwarf planet found in our solar syste...

Jupiter and the sun orbit a barycenter, too. Jupiter is a planet.

XorNot on May 22, 2025 [–]

And the sun is a star. The point is the category exists to be useful: if Pluto is a planet then a ton of other stuff is technically a planet.

naikrovek on May 22, 2025 | [–]

and in cases where the star is binary with a huge rocky planet? what are the large satellites in that star system? are they planets of the star, or moons of the huge rocky planet?

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