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Bye Bye Pluto


Binkmeister

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OK, this has nothing to do with LEGO, or Bionicle, so if you're bored with "space" stuff, go ahead and cruise on by.

 

We lost a planet today. It wasn't a big one, but it has three moons, so you'd think it'd be hard to misplace.

 

The International Astronomical Union today passed a new resolution that defines what a "planet" is. It was tumultuous, apparently - it even came close to the "gray vs. bley" furor in the AFOL world from a couple of years ago. Yes, it was that big. So, instead of having 9 planets, our solar system now has eight - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto is now a "Trans-Neptune Object" (TNO), along with Xena and some other weird worlds.

 

Think of all the poor school kids who'll have to change what they know, or thought they knew. And think of the sadistic fun science teachers can have now.

 

"Johnny, how many planets are in our solar system? Remember, we talked about this last year just before summer break."

"Gee, you told us that! It's nine planets!"

"WRONG! You're to stay after class and erase the chalkboard with your tongue for not reading CNN!"

"Waaaaah! But I'm only six years old!"

 

To give you an idea of how old I am, I remember taking high school science, and the big buzz back then was they had just discovered a moon around Pluto: Charon. That was pretty cool. Now, they've decided Pluto isn't a planet anymore.

 

All those mnemonics are going to have to be re-thought. No more, "Most Very Energetic Martians Just Swim Using No Pools," or "My Very Efficient Metal Jaguar Sometimes Uses No Petrol." I can just see the contests to come up with new ones. (And no, I can't think of any right now.)

 

At least they haven't messed with, "Oh, Be a Fine Girl, Kiss Me Right Now Sweetheart."

 

And if you don't know just what the heck I'm talking about, you need to take an astronomy class. :) Especially if you think "Pluto" is a Disney character. "Yeah, right, Bink. Look, there's Planet Donald, rising past Mickey Moon! Nyuk nyuk nyuk."

 

Although I understand why the IAU made the choice they did, it's still kind of a sad day.

 

So long, Pluto. We hardly knew ye.

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If we ever make contact with a possible other sentient life form, I'd love to see what they consider to be a planet.

"Planet Earth? Oh, you mean Little Space Pebble Disaster-waiting-to-happen!" :lol:

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Great, Pluto's no longer a planet... and I never got to visit; now I'll never have that chance.

 

Does this mean some of our childhoods were a lie?

 

Modern Views Evaluate Mister Johnny Scientist Understands Nothing. :lol:

Many Variables Eventually Made Jimmy Stewart Unusually Nonconformist.

 

©1984-2006 Toaraga EAM

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This will be fun to use. I shall go around quizzing random people about how many planets there are in this solar system and laugh when they get it wrong. :D

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Poor Pluto. But he is now king of the comets instead of pipsqueak of the planets. My very educated mother just served us nothing :P That wasn't hard.

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Farewell Pluto, dang and that's where I wanted to have my vacation! Sorry, Kopaka we can't go to Pluto now...

 

Kohaku

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It's still a planent to me. Because that's what I learned it as and I don't ever expect to relearn the solar system. :P

Agreed. It took me years to memorize that freaking rhyme, and I'm not just going to forget it.

 

Pluto IS a planet, darn it!

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Actually, I heard somewhere that anything orbiting a star is considered a planet in one sense or another... but that was before this whole "cleared the neighborhood" bull... Pluto, you'll always be a planet, in here *pokes chest*.

 

Definition of the "clearing the 'hood": The phrase refers to an orbiting body (a planet or protoplanet) "sweeping out" its orbital region over time, by gravitationally interacting with smaller bodies nearby. Over many orbital cycles, a large body will tend to cause small bodies either to accrete with it, or to be disturbed to another orbit. As a consequence it does not then share its orbital region with other bodies of significant size, except for its own satellites, or those governed by its own gravitational influence (such as Trojan asteroids).

 

Steven Soter of the Department of Astrophysics, American Museum of Natural History, has written that "A heliocentric body with Λ > 1 [viz., a planet] has cleared a substantial fraction of small bodies out of its orbital neighborhood."

 

The concept was used by the IAU in its August 24, 2006 redefinition of the term "planet" as one of the criteria differentiating a planet from a dwarf planet; a planet is a body with sufficient mass to have "cleared the neighbourhood around its orbit". The IAU also explicitly stated that Pluto will now be considered a dwarf planet; it has not cleared the neighborhood of its orbit (vis-à-vis Neptune and Kuiper Belt Objects such as the Plutinos).

 

However, Dr Alan Stern, who leads the NASA New Horizons mission to Pluto, contends that Earth, Mars, Jupiter and Neptune have also not fully cleared their orbital zones either. Earth orbits with 10,000 near Earth asteroids. Jupiter, meanwhile, is accompanied by 100,000 Trojan asteroids on its orbital path. "If Neptune had cleared its zone, Pluto wouldn't be there," he added.

 

Really, though, 2,500 people were so bored, they kicked Pluto's tiny, cold butt out of the planetary list just because it didn't do that? Thanks Dr. Stern...

 

Sorry for the long post, Bink. Just wanted to have some clarification brought to this...

 

-Marauder

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I know! Maniacal Vixens Eat Moriarty's Jerkish Squirrel Notebooks! Yeah, there's a debate over this in the COT forum, and it is worse than the Grey vs. Bley debate on a wider scale, and its even worse than the Evil Dume vs. Good Dume debate, if the guys at the news station aren't just lying through their teeth to create some news other than whatever topic it is they've been exploiting to death these days... But, now, Pluto is a dwarf amongst celestial giants. Let's hope planets can't get arthritis, or else next thing we know, Jupiter will be demoted to circus midget planet. Or Saturn becoming a Siamese twin planet... Suddenly, I hate astronomers as much as Jonathan Swift hated astrologers. Seems that now the profits of hundreds of planetary-educational-toys-and-books-manufacturing companies depend on some beady eyed nerds wearing tweed shorts and pocket protector protectors who probably still live with their mothers.
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*has never used a mnemonic device to remember the order of the planets in his life*

 

... Though I must echo Schiz from elsewhere and wonder as to the necessity of this classification. Admittedly, having an asteroid (Ceres) as a planet would be rather odd, but I'd have been perfectly fine with other planets beyond Pluto ... In fact, calling such objects "not planets" sort of goes against the meaning of the word, as I see it ...

 

One must, however, wonder why an asteroid was named after the goddess of the fields.

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... Now my astronomy book is outdated.

Science majors across the world right now are moaning a collective sound of disgust. Think of how many of their texts have just been rendered worthless because of references to Pluto as a planet.

 

I bet if you watch in the next year, the amount of money spent on textbooks for any school will sky-rocket because of this.

 

And you know, that was probably the plan behind this all along. If sales start dwindling again...watch out Neptune.

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I bet if you watch in the next year, the amount of money spent on textbooks for any school will sky-rocket because of this.

Good thing we Canadians (I think it's all of us) don't have to pay for textbooks. =D

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