2007-02-05 00:06:31 · 9 answers · asked by charles 1 in Science & Mathematics ➔ Astronomy & Space
It is becuase it is
a) too small
b) does not control/dominate it's own orbit
meaning==there are lots of things in its orbit(Kupier Belt Objects) that Pluto is too small to control
2007-02-05 00:11:55 · answer #1 · answered by Anonymous · 0⤊ 0⤋
There are four reasons:-
1) It is too small
2) It has a satellite too big for the planet, which is Charon and is 1/2 the size of Pluto.
3) The orbit is too slanted and is different.
4) Different from other gas giants(Jupiter, Saturn, Uranus & Neptune) although it is an outer planet.
2007-02-05 10:05:51 · answer #2 · answered by Shreyan 4 · 0⤊ 0⤋
Astronomers found objects larger than Pluto orbiting the sun farther away and made the decision to downgrade Pluto to a dwarf planet instead of making the new objects full fledged planets.
2007-02-05 11:01:02 · answer #3 · answered by Belru Tytor 2 · 0⤊ 0⤋
It is not considered a planet due to its size and orbit. Its orbit doesn't follow the normal orbit. It also circles around certain planets, so many scientists think it is an planetoids or a natural satellite.
2007-02-05 08:13:52 · answer #4 · answered by puppiluvr101 3 · 0⤊ 0⤋
pluto is smaller than our moon
2007-02-05 08:13:15 · answer #5 · answered by Tuco 3 · 0⤊ 0⤋
They said it's too small.
Rhode Island better watch its back.
2007-02-05 08:11:26 · answer #6 · answered by Anonymous · 1⤊ 0⤋
It does not dominate it's area. It does not have the size.
B
2007-02-05 08:14:23 · answer #7 · answered by Bacchus 5 · 0⤊ 0⤋
because its basically just a big old ice ball.
2007-02-05 08:11:43 · answer #8 · answered by 90☮48 5 · 0⤊ 0⤋
because sizes does matter ;)
2007-02-05 08:10:00 · answer #9 · answered by jewel 2 · 0⤊ 0⤋