It's orbit is tilted out of the ecliptic. The orbit is sufficiently irregular that it comes inside Neptune's (every umpty-ump years...). It just doesn't match the established pattern. A reg-exp that matches "planet-like" chars would not match Pluto (sorry Percival).

In reply to Re: Should Pluto Get Its Planethood Back? by Anonymous Monk
in thread Should Pluto Get Its Planethood Back? by Arunbear

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