[SunkenCiv]

"To Pluto And Far Beyond" By David H. Levy, Parade, January 15, 2006 -- We don't have a dictionary definition yet that includes all the contingencies. In the wake of the new discovery, however, the International Astronomical Union has set up a group to develop a workable definition of planet. For our part, in consultation with several experienced planetary astronomers, Parade offers this definition: A planet is a body large enough that, when it formed, it condensed under its own gravity to be shaped like a sphere. It orbits a star directly and is not a moon of another planet.

[SunkenCiv]

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[DannyTN]

"We don't have a dictionary definition yet that includes all the contingencies."

We don't even know what all of the contingencies are yet. But I would think that the same definition we use for our own solar system would be used for other solar systems, until an object is found that just doesn't fit. Or until a natural dividing line is found that makes redefining "planet" again for all solar systems.

[centurion316]

I’m hoping that the President will address this alarming state of affairs in tonight’s speech. I’m afraid that we are all doomed if he doesn’t.

[Cacique]

btt

[decimon]

Planet Definition Doesn't Apply Beyond Solar System

Let's cross that bridge when we come to it. Not count our planets before they hatch. Not go the whole nine orbs. Let's call the whole thing off.

[PIF]

Definition: Planet

A body orbiting a sun or transiting interstellar space that does not contin humans...