How many planets are in the Solar System?

[-Slacker-]

Christ, people on the internet act like they have some sort of personal stake in something as trivial as Pluto's "planethood". 'The hell difference does it make to you, as someone who is almost certainly not a professional astronomer?

 

[IronWing]

Christ, people on the internet act like they have some sort of personal stake in something as trivial as Pluto's "planethood". 'The hell difference does it make to you, as someone who is almost certainly not an astronomer?

Pluto losing its planethood stripped me of my personhood. I think that is a pretty big deal. Wouldn't you agree?

 

[-Slacker-]

If you don't even care about this thing, as you shouldn't, then why make a thread about it?

 

[randomrogue]

If you don't care about Pluto then you are dead to me.

 

[SandEagle]

mvemjsnup

/screech

 

[SphinxnihpS]

I think to be a PLANEt it should have to be on the same PLANE as the other PLANEts.

 

[SphinxnihpS]

Pluto losing its planethood stripped me of my personhood. I think that is a pretty big deal. Wouldn't you agree?

Your meds are on the counter by the toaster.

 

[IronWing]

I think to be a PLANEt it should have to be on the same PLANE as the other PLANEts.

They could book their flight on Orbitz.

 

[IronWing]

Your meds are on the counter by the toaster.

You have to reread the OP. I gave an answer different from the one the server wanted and it declared me "not-a-person, goodbye".

 

[JTsyo]

mvemjsunp

/screech

fix'd

It used to be My Very Educated Mother Just Served Us Nine Pizzas
Now it went from Nine Pizzas to Nothing. Which would you prefer for dinner?

 

[l0cke]

fix'd

It used to be My Very Educated Mother Just Served Us Nine Pizzas
Now it went from Nine Pizzas to Nothing. Which would you prefer for dinner?

Noodles

 

[SphinxnihpS]

You have to reread the OP. I gave an answer different from the one the server wanted and it declared me "not-a-person, goodbye".

Sorry, it's my meds.

 

[Lemon law]

How can a planet named after a Walt Disney character's dog be so cruelly demoted to a mere planetoid status?

Is nothing sacred? Seeing is believing, and I saw it in an animated cartoon.

 

[gorobei]

THERE ARE EIGHT PLANETS!!!!!

 

[dmcowen674]

How many planets are in the Solar System?

One

Everything revolves around Earth, everyone knows this

 

[Newbian]

 

[HeXen]

This reminded me of when they were selling plots of land on Mars. I wonder what became of all that.

 

[dr150]

In 2036 Apophis is going to kill us all.

Not true.

Apophis died on Stargate. We're safe.

 

[IronWing]

Not true.

Apophis died on Stargate. We're safe.

That really one of the costumes? Lord, that's bad. But a good use of cardboard and gold spray paint.

 

[StinkyPinky]

Not true.

Apophis died on Stargate. We're safe.

Is he stroking one of his turds?

 

[Mr. Pedantic]

Pluto has much more in common with other dwarf planets than the rest of the planets; by comparison, it really is very dissimilar to the other planets.

If Pluto is a planet then so are Ceres (in the asteroid belt), Pluto, Haumea, Makemake, Eris, 2007 OR10, Sedna, Quaoar, Orcus, and probably many other undiscovered "dwarf planets".

Personally, I'd define a planet as an object big enough to retain an atmosphere, but not so big it starts nuclear fusion in its core. Which would rule out Mercury as well. :sneaky:

Posted from the second planet in a system of seven.

Technically, that would mean Titan would be a planet, as would Rhea, Triton, Dione, and most comets.

Also, Mercury has a (faint, high-turnover) atmosphere.

 

[Childs]

Is he stroking one of his turds?

Its a Goa'uld. Explaining what it is would be more nerdy than knowing its name, so I'm going to stop there.

 

[sao123]

Counting Phaeton, I believe there are still 9, though we still have not located the supposed 10th planet in the OORT cloud.

 

[thedarkwolf]

Counting Phaeton, I believe there are still 9, though we still have not located the supposed 10th planet in the OORT cloud.

What does the dude from Exosquad have to do with anything?

 

[dennilfloss]

They had a chance to adopt a simple, logical definition of a planet as a body that directly orbits a star and is massive enough that gravity would impart a spherical shape but not massive enough to start any core fusion. There was no need to bother with whether it forms from coalescing debris in the stellar cloud or whether it so-calls 'clears its orbit'. That was just a political play by the statistical astronomers, who waited until there was barely a quorum to get the new definition passed en catimini. So what if that meant there were more planets found further than Pluto and that Ceres would be classified a planet? How is having 13 or 14 planets so different from having 8 or 9? At least here was a logical, physical-propriety (mass) based definition that could be applied to exoplanets. Right now we have so many exoplanets for which there is no data whether they have cleared their orbit. All we know about them that matters is their mass (big enough to make them spherical) and orbit. If that's enough for them to be considered planets, then why not Pluto and Ceres, etc...