2007-04-10 11:22:58 · 7 answers · asked by ? 5 in Science & Mathematics ➔ Astronomy & Space
I mean "oh" not "or"........crikey
2007-04-10 11:26:10 · update #1
Because he's a dog!
2007-04-10 11:27:06 · answer #1 · answered by Anonymous · 0⤊ 0⤋
A planet must satisfy all of the following criteria according to the IAU definition:
1) Must achieve hydrostatic equilibrium (gravity pulls it into round shape)
2) Must be dominant object in it's region of the solar system.
3) Must orbit a star.
Pluto does not fit #2. The asteroid Eris is larger than Pluto. Besides, Pluto is right in an asteroid belt called the Kuiper Belt. Pluto's honestly no different from any other asteroid in the belt, other than that it was discovered first.
2007-04-10 18:54:52 · answer #2 · answered by Anonymous · 0⤊ 0⤋
First of all, Pluto doesn't fall into the plane of the other planets. Secondly, with the new telescopes, they will be finding more objects like Pluto and we don't need 30 planets.
2007-04-10 18:26:46 · answer #3 · answered by Gene 7 · 0⤊ 0⤋
firstly because pluto has an odd orbit
secondly because it is to small to maintain its own gravitational pull
lastly it is too far away from the sun, and astronemers believe that pluto is closer to another sun than our
2007-04-11 04:36:17 · answer #4 · answered by ? 1 · 0⤊ 0⤋
Because it is easier to remove one planet then to add 5 more.
Go Ceres!
2007-04-10 18:41:52 · answer #5 · answered by Anonymous · 0⤊ 0⤋
It is too small compared to its moon (Charon) and it has an odd orbit.
2007-04-10 18:26:50 · answer #6 · answered by Mr. Smith 5 · 0⤊ 0⤋
Those mean spirited astronomical bastards!
2007-04-10 18:37:22 · answer #7 · answered by the_skipper_also 3 · 0⤊ 0⤋