Did they name Planet X because "X" is the roman numeral for 10 since there are only 9 known planets?

Question

or is it just an algebraic variable

Answer 1

Planet X is a large hypothetical planet orbiting beyond the orbit of Neptune. The X stands for "unknown", not the Roman number 10; there were only 8 known planets at the time.

Answer 2

The "X" in Planet X doesn't relate to roman numerals. It just means unknown planet.

Answer 3

Your second part of the question is correct; X is just a generic variable. Sort of like "n"th in an infinite equation...LB

Answer 4

very few ought to have study this questions and intensely few responded it however i'm additionally between them a citizen of usa before an Indian as we won't be able to stay a citizen of two international locations with the aid of fact being American resident we are no longer any further Indian yet we are in a position to pass to our mom land for ever and are loose to stay there too loosing all reward if we live longer i think of , each physique loves peace and hate a place the place there is not any protection . as quickly as I see terrorism is a international subject each physique ought to play his or her function . whilst Malala a muslim female can combat for education of ladies ,whilst a new child needs his or her freedom a terrorist lives in terror and not loose from its consequences ,an afternoon might come whilst human beings might come forward to wipe it from human minds besides the undeniable fact that this is basically too overdue already , there are a good style of ability of destruction to wipe total humanity if mandatory action isn't taken quicker . i'm too small to take any action ,yet all form of violent action pictures ought to be removed from media so as that we don't have get entry to to them via any ability . human beings can lease a number of those video clips for couple greenbacks and arise to combat with family individuals then to next neighbor then at artwork then someplace at identifying to purchase mall ,then everywhere he does not think of top further on via media and materials he can get entry to from cafes and famous guy or woman dollar who provide this freedom so surely . Then we try to calm the recommendations that's already bombarded with plenty destructive innovations around the international .

Answer 5

no... there are not only 9 known planets (maybe 9 from our solar sistem)

Answer 6

I think that the "X" means unknown but your idea could be right.