is pluto now considered as planet? If not why?

Question

Pluto- it is an planet.

Answer 1

Pluto is too small to be considered a planet any more.

Answer 2

Your question is backwards... Pluto was once considered a planet and is now NOT considered a planet.

First of all, when you look at the solar system, you see that the four inner planets are small rock planets, and the outer four planets are giant gas planets (well, the two outer most planets are ice, because it's too damn cold). This is due to differentiation when the planets formed. Heavier substances stay close to the core, and the less dense objects float out further (as in a bottle with water and oil, the heavier oil sinks to the bottom where gravity pulls down harder on it than water, so the water floats over the top of oil).

Now, then... Pluto is not like the other outer planets, so it is essentially in the wrong place if it formed from the same star (our sun) as the rest of our planets. So, we know that it couldn't have formed from the same star.

Another thing is that it is so tiny compared to the outer giant gas planets, and even to our inner planets, so it cannot be a planet. It is now considered a dwarf planet.

Not only that, but Pluto's orbit is not on the same plain as ours, suggesting that Pluto just got caught in our solar system.

Answer 3

Yes, Pluto is considered a Planet,.. just a special tiny planet.

We have also gained a couple other planets and I think they were said to be EVEN SMALLER then Pluto but in the same Class. Pluto is just under what is considered the Regular Planet size because we pretend Earth is normal and regular size for a Planet. However there are Solar Systems composed of these "small" planets. Like wise there are Solar Systems where a couple Planets the size of Jupiter and the Sun compose the Solar system.

Pluto also has it's irregular orbit pattern, but it's too large to just be some dinky comet and not revolveing around a planet so it's not a satellite, this works against it though because people think it's weird. However again,.. there are some Solar systems out there where this is more the norm to be irregular in orbit.

Answer 4

Pluto is now considered a "dwarf planet." There are three criteria that an object must meet to be considered a planet:
1. It must be in orbit around the sun
2. It must have sufficient mass for its self-gravity to overcome rigid body forces to assume a hydrostatic equilibrium (this just means it must be the right shape for a planet)
3. It must clear the neighborhood around its orbit.
Pluto, however, has not cleared the neighborhood around its orbit(because it's "moon" Charon affects Pluto's orbit), which is why it is no longer considered a full-fledged planet.
It actually does not have anything to do with its size, or with its orbiting in a different plane than the rest of the planets. Also, it has nothing to do with being a mass that was "captured" by our solar system as some of the other people suggest. The reason Pluto is not considered a planet is because it has not cleared its orbit. (That means there are materials in the same region as pluto that affect Pluto's orbit.)

Answer 5

Poor Pluto. Did he get demoted? He was always the smallest planet. What is he now? An asteroid? Darn astronomers! Tee hee. Oh well. Nothing you can count on anymore...

Next they'll be saying Mickey's dog wasn't a dog either. Though I never got why he barked & Goofy (also a dog) spoke fluent English...

Answer 6

Yes, pluto is obviously a planet. Every book says so. It even has its own moon.

Answer 7

No! Pluto is not considered as a planet becuz it is very small.

Answer 8

Pluto will always be Mickey's lovable pooch as far as I'm concerned.

Answer 9

Because we're bigots, nobody spoke up for the Plutonians....we always pick on the little guys.

Answer 10

Nup it lost that status by a group of scientists