Planetary Movement

[Shadowmonk710]

I would like to know if anybody knows the answer to my question or even a starting point to look. My question is: "Is it possible that there is a planetary path that passes through our solar system, and that because the time to travel around that path could be longer than we have had recorded history, that we do not know of it"?

By planetary path I mean that each of our planets in our solar system rotate around our sun, this travel is what I am refering to as a planetary path.

Any fact or even theory would be greatly appreciated. The reason I ask is to settle a debate between two complete non scientist types that could really use some fact to finally settle the argument, or at least a good theory that we can both agree to. Please help.....

[Epsilon=One]

"Is it possible that there is a planetary path that passes through our solar system, and that because the time to travel around that path could be longer than we have had recorded history, that we do not know of it"?I assume that you mean the path is within our solar system as opposed to "passes through." Two different problems are involved; I'll address the first assumption.

The time to travel around the path would not be as important as the respective positions of the orbits and the planets within the orbits.

There probably are many planets that have not been discovered in our solar system; depending upon how generally you define the term planet. There is a point where the size of a planet and the size of its orbit will be beyond the gravitational effects of the Sun. This is where to begin your analysis once you have defined your terms. As you pose the question, I suppose the answer would be: Yes and No.

Currently there is much doubt as to whether Pluto is a planet and there are other candidates that well may be.[/QUOTE]