Quote:
Originally Posted by Kaptain K
Agreed! Calling Earth a terrestrial planet does not make it less of a planet than Jupiter, nor is Jupiter more of a planet, just because it is a gas giant planet. Modifiers such as gas giant, terrestrial, dwarf and minor merely define sub-classes of planets!
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As reasonable as that may be, that's not the usage for the past hundred years, and it's not the situation that the IAU addressed of course--in the current nomenclature, a minor planet is not a planet (
similar, and I know I'm pushing it, to how a mock turtle is not a turtle
).