12 planets in the Solar System will be official count on 24th of August

[Stylesrj]

I think we have a winner. Forget about Pluto, Charon, Xena and Ceres. Those pairs together make the 12 planets! Wouldn't you agree?

 

[Tee Kay]

Alright, Stylesrj, just to keep you happy.

Spoiler :

 

[Stylesjl]

Sigh i am happy to accept there are 12 planets. Times change Stylesrj, back in the begginning of the 20th century when Pluto hadn't been found you would have made the same stupid rant

Though i don't like the redifinition of a planet overall though

 

[Stylesrj]

You didn't have to do that Tailless, we're joking around about the planets. Perfectionoids shouldn't be part of our solar system, they should be part of the Perf Solar System

EDIT: Stylesjl, if it were back in that time, there wasn't a thing called The Internet, so I couldn't have made the same rant

 

[Perfection]

I think we have a winner. Forget about Pluto, Charon, Xena and Ceres. Those pairs together make the 12 planets! Wouldn't you agree?

But mine are Xena's!

Sigh i am happy to accept there are 12 planets. Times change Stylesrj, back in the begginning of the 20th century when Pluto hadn't been found you would have made the same stupid rant

Though i don't like the redifinition of a planet overall though

That's the real issue the IAU's definition sucks.

 

[Stylesrj]

We should forget about the Perfectionoid Xena and also forget about Pluto and Charon and Ceres. We just replace them with Lucy Lawless and Pamela Anderson's breasts and therefore we have our 12

Back to the matter at hand:
Knowing which planets are part of Sol does not matter. It's not like some small furry creature from Alpha Centauri will say we have 8 planets and therefore isn't an acceptable solar system and blow it up because they are like that, now is it?

 

[Tee Kay]

EDIT: Stylesjl, if it were back in that time, there wasn't a thing called The Internet, so I couldn't have made the same rant

Instead you would probably stand in the street and shout "Pluto is not a planet!!! Pluto is not a planet!!!"

Personally (serious tone) I think we should 1) keep the old planet count or 2) demote Pluto to the status of Kuiper Belt Object...sorry Perfectionoid, but don't add any new planets otherwise, as I mentioned before, we would have 20+ new planets which aren't really planets at all, but icy oddballs.

 

[kryszcztov]

I'm not satisfied with Perfection's choice, because it is just as arbitrary as the rest, and its scope is in our own solar system only. What if we find a KBO-like thingie in another system (large excentricity, big inclinaison, low temperature, small size, etc...) which lies closer to its star than a Jovian planet (real adjective for "Jupiterian" BTW ) ?? And we can make the system a lot more complex, and I think such systems do exist.

Maybe aliens will only consider our 4 big planets and ignore the rest ? After all, Mercury is a classical planet just because it's close to the Sun.

My requirements for a planet (other than we know it's not producing light on its own and it's roughly spherical and it orbits a star) :
- make the definition universal, working for every system in the Universe, and not for our not-so-special Solar System ;
- make the definition so that we don't end up with hundreds of planets in every system.

Furthermore, I think the Earth could be closer (in category) to Ceres and Xena than to Jupiter. Why not have gas giant planet-like's and telluric planet-like's (Mercury, Venus, Terra, Mars, some ex-asteroids, the KBOs) ?

 

[Stylesrj]

Perfectionoids should be part of the Perf Solar System. There's enough of them to make another solar system, so why not? Seriously, put those Perfectionoids as their own solar system

 

[Cheetah]

I just had an idea.

What if a planet has to conform to the following properties:
1. It must orbit a star/stars.
2. It must be suficiently spherical (Defined by it's mass/composition/...).
3. It must be the only object orbiting the star in the object's path (This would mean that big bodies in asteroid fields are not counted as planets.). The exception to this is for Multiple Planet Systems which orbits a point, external to all its satelites, that orbits the star/stars.
4. The angularity of its plane must not diverge more than X degrees from the system mean plane (This should lock out Pluto and most of the KBOs, no?).

Could this work?

 

[Tee Kay]

I just had an idea.

What if a planet has to conform to the following properties:
1. It must orbit a star(s).
2. It must be suficiently spherical (Defined by it's mass/composition/...).
3. It must be the only object orbiting the star in the object's path (This would mean that big bodies in asteroid fields are not counted as planets.). The exception to this is for Multiple Planet Systems which orbits a point, external to all its satelites, that orbits the star(s).
4. The angularity of its plane must not diverge more than X degrees from the system mean plane (This should lock out Pluto and most of the KBOs, no?).

Could this work?

Wouldn't this also remove Neptune from the list of planets?

EDIT: come to think of it, no, although Neptune and Pluto's orbits overlapped, they are not in the same plane.

 

[Stylesrj]

Oh no! Not Neptune! We can't have that removed now can we? What about Uranus? Should we have that removed too? Then again, how will you poop if Uranus is removed?

 

[Perfection]

We should forget about the Perfectionoid Xena and also forget about Pluto and Charon and Ceres. We just replace them with Lucy Lawless and Pamela Anderson's breasts and therefore we have our 12

But Lucy Lawless is Xena!

Back to the matter at hand:
Knowing which planets are part of Sol does not matter. It's not like some small furry creature from Alpha Centauri will say we have 8 planets and therefore isn't an acceptable solar system and blow it up because they are like that, now is it?

If aliens visited the Solar System (assuming the non-existance of Rupert) they'd find 8 major bodies and a bunch o' debris, Pluto would be among the debris)

I'm not satisfied with Perfection's choice, because it is just as arbitrary as the rest, and its scope is in our own solar system only. What if we find a KBO-like thingie in another system (large excentricity, big inclinaison, low temperature, small size, etc...) which lies closer to its star than a Jovian planet (real adjective for "Jupiterian" BTW ) ?? And we can make the system a lot more complex, and I think such systems do exist.

Well it wouldn't be a planet, just a field object. I'd call it by some sort of generalized term for a small body. I really don't see how my definition of a planet doesn't apply.

I just had an idea.

What if a planet has to conform to the following properties:
1. It must orbit a star/stars.
2. It must be suficiently spherical (Defined by it's mass/composition/...).
3. It must be the only object orbiting the star in the object's path (This would mean that big bodies in asteroid fields are not counted as planets.). The exception to this is for Multiple Planet Systems which orbits a point, external to all its satelites, that orbits the star/stars.
4. The angularity of its plane must not diverge more than X degrees from the system mean plane (This should lock out Pluto and most of the KBOs, no?).

Could this work?

Nix four (high eccentricity is seen in a lot of extrasolar Jovians)
Amend 3 to orbital locus or something other than Path (that should get rid of Pluto and the like).
That could work

Here's my scheme for anyone who is interested:
http://forums.civfanatics.com/showpost.php?p=4220429&postcount=24

 

[Stylesrj]

I know how to solve the problem...

Problem solved? Any questions?

 

[Tee Kay]

Here's my scheme for anyone who is interested:
http://forums.civfanatics.com/showpost.php?p=4220429&postcount=24

Firstly, do you keep this link in your mind or in notes?

Secondly, your scheme works well in general, but it still doesn't determine if Pluto/large KBOs are planets or not.

 

[Stylesjl]

I know how to solve the problem...

Listen go play with your toys while the grown ups discuss buisness

 

[Stylesrj]

Seriously, why should we care about those other planets. We're never going to land a person on them any time soon, so why bother? I can see people landing on Mars and the other planets like Mercury and Venus are within the Inner Belt, so we should care about them for some reason. But the Outer Belt, we can just ignore. What are we going to get from Uranus anyway, besides methane? Or was that Neptune?

 

[Stylesjl]

I just had an idea.

What if a planet has to conform to the following properties:
1. It must orbit a star/stars.
2. It must be suficiently spherical (Defined by it's mass/composition/...).
3. It must be the only object orbiting the star in the object's path (This would mean that big bodies in asteroid fields are not counted as planets.). The exception to this is for Multiple Planet Systems which orbits a point, external to all its satelites, that orbits the star/stars.
4. The angularity of its plane must not diverge more than X degrees from the system mean plane (This should lock out Pluto and most of the KBOs, no?).

Could this work?

I don't like the third or forth one, but i would amend a new rule

3) It must be within the consistent gravitational influence of the star

 

[Tee Kay]

Before we go on, I would like to welcome these solar system bodies, soon to become planet #13-24 under the new IAU definition. (diagram to scale)

http://www.iau2006.org/mirror/www.iau.org/iau0601/iau0601c.html

Compare the size of these rocks to Earth and you'll see how ridiculous the new IAU definition is. I mean, Vesta, for instance, is smaller than Texas.

 

[Perfection]

Secondly, your scheme works well in general, but it still doesn't determine if Pluto/large KBOs are planets or not.

Yes it does, KBOs lack criterion 2.

Seriously, why should we care about those other planets. We're never going to land a person on them any time soon, so why bother? I can see people landing on Mars and the other planets like Mercury and Venus are within the Inner Belt, so we should care about them for some reason. But the Outer Belt, we can just ignore. What are we going to get from Uranus anyway, besides methane? Or was that Neptune?

Well, we do send robots!