1. When Astronomers finally do plot the exact location in space of "Planet X," they will mark it with an "X."
2. If you are among those who still consider Pluto to be a full-fledged planet, and who therefore still believe that our Solar System has nine known planets, then Planet X will increase that to 10 - or, in Roman numerals, X.
Regards,
Sometimes the universe seems like it was settled by an American, sometimes the Romans. But we know this for sure: There can only be 26 planets at any given time, plus the so called 'special planets' eg, Planet #, Planet ! and the shortest planet, Planet _. Each one having its own memories of good times and bad times, just like any other person.
And isn't that how it should be.