Is Pluto a Planet?

[timb2]

I was taught 9 planets in our Universe and Pluto was the 9th. Now they say Pluto is not. So what is your opinion? For me, Pluto is a planet and will always be.

 

[Tabascocat]

Pluto orbits the sun and has its own moons……so I say yes!

 

[jwitten82]

I was taught 9 planets in our Universe and Pluto was the 9th. Now they say Pluto is not. So what is your opinion? For me, Pluto is a planet and will always be.

It use to be 9 planets in our solar system, but yea something about Pluto not meeting all the criteria to be considered a planet, so now we're at 8. I think Pluto is considered a dwarf planet now

 

[Runwildboys]

Pluto doesn't fit all the criteria to be considered a planet. It's been downgraded to "dwarf planet". A planet needs to clear its neighboring region of other objects, mostly by changing their trajectory throughout its orbit. Pluto doesn't do that.

I believe there are asteroids that are actually bigger than Pluto, but I may be misremembering.

 

[Tabascocat]

Pluto doesn't fit all the criteria to be considered a planet. It's been downgraded to "dwarf planet". A planet needs to clear its neighboring region of other objects, mostly by changing their trajectory throughout its orbit. Pluto doesn't do that.

Yea but they changed the definition of a planet. What if the IAU changed it again in the future saying a planet has to have a solid core and the surface made up of rocks. Would you still consider Jupiter and Saturn a planet?

That’s where we are with Pluto. It got the short-end of the stick

 

[Runwildboys]

Yea but they changed the definition of a planet. What if the IAU changed it again in the future saying a planet has to have a solid core and the surface made up of rocks. Would you still consider Jupiter and Saturn a planet?

That’s where we are with Pluto. It got the short-end of the stick

They didn't "change it", per se. They never really had any criteria until they decided to define it in 2006. Yeah, Pluto got it good, like it was a Dallas Cowboy and Neil deGrasse Tyson was the NFL commissioner!

 

[rags747]

Pluto obviously said some things that were not appreciated By the Ilumaniti.

 

[lukin2006]

Pluto is a planet…

who changed the definition…someone at nasa bored.

 

[Runwildboys]

Pluto is a planet…

who changed the definition…someone at nasa bored.

Not NASA.

 

[rags747]

Pluto is a planet…

who changed the definition…someone at nasa bored.

Changed long ago.

 

[Hardline]

Pluto is a dog.

 

[JD_KaPow]

My Very Excellent Mother Just Served Us Nothing. No Pasta, No Pizza, No Potatoes, Nothing.

 

[BrAinPaiNt]

I guess it depends on your age. For most of us it was/is a planet.

 

[Runwildboys]

I guess it depends on your age. For most of us it was/is a planet.

I'm 59, and never grew attached enough to care that it's been reassessed. Though I shouldn't put it that way. They didn't decide on the definition with Pluto in mind (at least I don't think so), it just happened that once they had a definition of the word, Pluto didn't fit.

 

[Montanalo]

Neil deGrasse Tyson, astrophysicist and media personality, has claimed responsibility for downgrading Pluto.

 

[VaqueroTD]

It's one hell of an asteroid.

 

[Runwildboys]

It's one hell of an asteroid.

It's been labeled a dwarf planet, and there are 4 others, that they've discovered so far.

 

[Streifenkarl]

I believe in science and usually follow a good argument. But for me Pluto will always be a planet and that's that. I just like the number 9.

 

[Xelda]

Pluto is a planet and a dog.

 

[KJJ]

It's one hell of an asteroid.

When I was a kid I used to think you got those from sitting too much.