Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: tony6789 on 14/02/2006 14:37:18

Title: Pluto a real planet
Post by: tony6789 on 14/02/2006 14:37:18

Acorrding to all records planets in our solar sysem are gas beyond Mars well how do you explain Pluto? Could it be a planet or a moon stuck in orbit and if it is a moon how do you explain its moon?

- Big T

Title: Re: Pluto a real planet
Post by: G-1 Theory on 21/02/2006 14:06:43

Dear Tony

Moons are planettoids that orbits a planet, so Pluto is a planet.


"Learn the facts and go on from there, and never stop asking questions."

Admiral Rickover

Title: Re: Pluto a real planet
Post by: tony6789 on 21/02/2006 14:24:53

but yet Pluto is smaller than some moons

- Big T

Title: Re: Pluto a real planet
Post by: G-1 Theory on 21/02/2006 14:41:42

Dear Tony;

   Size is not what we go by.

  What would you call a very small plaetoid that has a even smaller moon in orbit around it.
  Because we have found what we had classifed as an astroid that has a moon.

Edward E. kerls


"Learn the facts and go on from there, and never stop asking questions."

Admiral Rickover

Title: Re: Pluto a real planet
Post by: tony6789 on 22/02/2006 14:14:44

Well i am still in school(check profile) And we laerned that all the outer planets or gas. I suppose that could be wrong but it it possible that Pluto could be an asteroid locked in orbit?

- Big T

Title: Re: Pluto a real planet
Post by: daveshorts on 22/02/2006 14:54:46

The real problem with pluto being a planet is that they are just starting to find loads of similar sized objects in the kuiper belt. They just recently found one that is actually bigger than pluto - so either pluto is a planet and so are loads of other similar objects - this would be a bit harsh on kids learning the names of the planets... or pluto isn't really a proper planet.

Title: Re: Pluto a real planet
Post by: tony6789 on 23/02/2006 14:21:33

exactly what i am saying it can't be a real planet or all the moons bigger than Pluto would be a planet too

- Big T

Title: Re: Pluto a real planet
Post by: daveshorts on 23/02/2006 14:51:10

It is all a matter of definitions, so is very arbitrary, you can say that a planet has to orbit the sun,. which excludes Io etc which are bigger than pluto. The real problem is that they are starting to discover other objects about pluto's size which orbit the sun directly.