10, 11 or more - but not 8!
IAU - plz - give us back the planet!
It could be so simple: Buie Definition of a planet shows us the way!
"A planet is an object that satisfies both of the following two rules:
Rule 1: A planet must not be so large that it can support or sustain fusion reactions (can't be a star). A secondary requirement is that a planet must not contain degenerate matter (such as a core of solid neutronium that might be left over from an exploded star).
Rule 2: A planet must be large enough to have a shape determined by gravity and not the strength of its material (usually this means it is spherical).
That's it!"
Marc W. Buie, Lowell Observatory / 1
The IAU2 definition of a planet...
"The object must be in orbit around the Sun.
The object must be massive enough to be a sphere by its own gravitational force. More specifically, its own gravity should pull it into a shape of hydrostatic equilibrium.
It must have cleared the neighbourhood around its orbit.
Pluto fails to meet the third condition. The IAU further resolved that Pluto be classified in the simultaneously created dwarf planet category, and that it act as prototype for a yet-to-be-named category of trans-Neptunian objects, in which it would be separately, but concurrently, classified."
That's not funny... at time Pluto isnt longer a planet - its a dwarf planet and the solar system has only 8 planets... why not cut the third point of definition.
/1
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