Pluto, Eris, and the Dwarf Planets of the Outer Solar System

[grisgrisy]

interesting video and very informative

[smuggecko]

love the video man

[staranjela]

love the video man

[clarke416]

educational :)

[BrainChild666]

22:43 once again empirical evidence that shows Einsteins Gravity well concept is wrong. The fabric of space time is not 2 dimensional. Plus you can slow light down so there goes the cosmological constant!

[bdogshredder]

he also didn't mention "plutoid" which was a canidate for classification of pluto sized far orbit objects. that would be cool.

[bdogshredder]

Doesn't "planet" define something that orbits in a "plane" ? like the equitorial plane of the sun? or close to it? duh!? so, if it is inclined to that plane, clearly not a planet.

[MrGhostphone]

kermit the frogg? i think he sounds like john grant. don't you?

[Kg277]

fat bald guy

[Dailybabble]

@statusmaximus Also the Kuiper Belt

[Misguidedism]

kiss my eris!!!!! lol

[dartter50]

pluto and eris are the shit man

[JasonDamisch]

You have no respect for Pluto, shame on you!

[OnlyOnFridaysWink]

Omfg, that was sooo boring.

[1BYEBYE1]

ITS BILL GATES!

[MrRdfleuryjr01]

"Too much of a hassle?"

Nonsense.

[MrRdfleuryjr01]

why not just continue using photographic plates?

[everestgirl13]

@MrRdfleuryjr01 It is a huge hassle. In his book, he describes how it takes at least 20 minutes for each plate, and 10 minutes to just set it up.

[elazar79]

Pluto, Pluto, Who art thou Pluto??

[dreamsNdemise]

Don't know if anyone asked in the video, but how did all the objects in the kyper belt begin to orbit our sun/our solar system? He said that Sedna was once bigger and that it spewed off objects that are now orbiting the sun. Is that a reasonable explaination for the rest of the kyper belt objects?

This sort of reminds of when they found Jupiter's rings. It just lets you know that there's still a whole lot more we don't know and have yet to find about our solar system let alone the universe.

[dreamsNdemise]

He sounds like Kermit the Frog.

[cc1sportingtorver]

@dreamsNdemise Eeeh... eheh... EEEEEEH, EH; EH; EH... xD xD xD

[wispers187]

@dreamsNdemise lol

[wratched]

@dreamsNdemise Which means he sounds like Jim Henson, which makes him cool. 

[TheSohail1]

what is planet x

[TheSohail1]

this is true

[kedanna]

Oh and Eris is not bigger than Pluto.

h**p://*space*com/scienceastro­nomy/eris-smaller-than-pluto-1­01109*html

[kedanna]

It still pisses me off that a big ball of gas can be called a planet, but something like Pluto can't be. The rules for what has to be a planet is silly. What happened to the term rogue planet, are those things no longer planets? Earth has metro showers a lot, clearly we haven't cleared out our area of space either, so by their own ruling, Earth isn't a planet. "To many of them' that's like saying there's to many forms of life on Earth so we'll just stop calling new things life, welcome sub life.

[bandet888]

@kedanna Pluto was put in the right catagory. If Pluto is a planet then this Solar System has hundreds of planets. That's a lot to remember since we're in the habit of teaching our children the names of all the planets. We don't teach the names of all the moons so it's no problem adding more moons found around Jupiter, Saturn, etc... It is kind of sad though. Sometimes I wonder if we can use Pluto or some other large dwarf planet as a sharp cut off point. Pluto is still there though.

[bestmankillah]

this was very educational, I could watch his presentations for hours!

[redderstheamazing]

cracking channel subbed...

thanks.

[redderstheamazing]

poor pluto.......pluto is a planet in my eyes.

[Projectoxcart]

10,000 IAU Members could hav Voted on Pluto only 424 Voted So the Vote Stink"s!

[MikDonsen]

I think they should all be called planetoids. A 8 planet model would be like having an 8 country world, simply because you only wanna remember the biggest. It`s amazing though, how much more complex the solar system is than the model that was taught to us in school.

[th3dig1tal0n3]

Still Pluto does not fit in to the category he does not belong to. Stupid definition forced by authority. Instead creating new class for the Pluto they put him in to the one they had at hand. Shame.

[silverchill1]

why blame neptune? if they keep going they will dicover more of em and it will look like an atom.

we are just an atom among thounds, on a lagre string of vibration among others.

now tell me we are the only thing in the whole galaxy, that lives....sad itl take proberly 1000s of years for us to move out past plutos ect, thats if the planet is still here lol...(wish i was imortal =-[ )

[PhilAEG]

Cosmic rays must be fast-moving things on camera?

Mike Brown is a great astronomer!

[slappymcgroundout]

Of course, his alien example works now, however, earlier in my life Pluto was orbiting inside Neptune and so our alien friends might well have considered Pluto to be a something special.

[sebastiansz]

he looks like Bill Gates

[TheKenny1423]

i click on it just to comment about its length longest you tube video ive ever seen

[gmanzeroalpha]

I compeletely agree. I see Jupiter as the dual star sister to the sun with the sun having grabbed too much hydrogen for that to happen. A little more and it would have been two stars in out solar systems. And with so many binary systems out there it s then even more likely that there will be plent of Sols and Jupiters that never quite made it, out there.

[Omnignosis]

@gmanzeroalpha

Will the Sun ignite Jupiter when is gets older and swells?

[gmanzeroalpha]

@Omnignosis well no because the sun needs crushing mass to crush itself into ignition. All those atoms and getting pushed together. They are vibrating in smaller and smaller spaces so they get faster and faster and so as you get soooo much energy in such a small space it brings the atoms into ignition speeds when they colide and bang, Fussion starts. The sun expanding will not add the mass that jupiter needs to make this happen, but it will heat it more.

[Goodoldm]

Yes, I like the subject matter, and the details the expert brings to point, but all that is said here could have been said in one third the time. Thanks. Sincerely, Goodold

[gigobait]

this fella is on Science Channel all the time

[bofocub]

is this a clone of Bill Gates?

[solothyrn]

fix your audio

[4godaddygo]

is this the thing everyone is scared of is this the nibiru

[JDD335]

cock

[grimslider76]

aliens can't find us yet cause our tvs radios dvds stuff like that stop radio transmission meaning they won't notice this planet's life source. if we can some how stop every thing that cause disturbence like that then after many years aleins might just notice us. ofcourse some of u don't believe in aleins but there are too many planets to judge that at all.

[TheMarchiz]

Please pay atention at the 0:23:07 moment in this video.I think Eris is orbiting not only our sun maybe is orbiting our binar star to, becose it s to distant from the sun and when it s to far away the other star and his gravity pulls Eris

[TheMarchiz]

hey please

[MrGrayzen]

Pluto was not named after a cartoon dog the cartoon dog was named after Pluto. Pluto is the god of the underworld.

[dethrock01]

lol

[dethrock01]

Wrong.

Fact: Pluto was named for itself by a time traveling Disney employee to gain fame for the Disney cartoon dog of the same name.

[RiveraIndependent]

what about mercury. is it small enough to be considered a dwarf planet, even though it doesn't match the other qualification of being icy

[MrGrayzen]

the size of pluto does not make it a dwarf planet, its the company that it keeps. Mercury has cleared its own orbit around the sun while Pluto is in the Kuiper Belt (consider it like an asteroid belt) and is far from alone.

[RiveraIndependent]

oh i see. man, you know whats really going to suck, is, when hundreds and hundreds of years later, when aliens finally recover the, then battered up Voyager 1 probe, if they judge planets by the same scale by we do now, they will be so confused as to why pluto is there :)

[MrGrayzen]

time travelling Disney employee? lol. Ok!

[bandet888]

If a land mass emerged in the Pacific ocean that was halfway in between the size of Greenland and Australia it would take mankind forever to debate as to whether it's an island or a contanent! lol

[bandet888]

I totaly understan why Pluto is more like Sedna, Eris, Quaoar, Makemake, etc... than it's like the other eight planets, it's just sad we can't include dwarf planets as part of regular planets but I guess there's too many of them. I think Jupiter and earth is just as different as Earth and Pluto. I think Jupiter is more compairable to a brown dwarf than to a terrestial planet like. Don't worry Pluto hasn't gone anywhere, it's in the solar system, it's just about correctly identifying objects.

[danmarino1970]

Google sky (blotted out..why?) You decide. 5h 53m 27s, -6 9' 56

[fistoramshank]

How do you make somthing so interesting, and make it so boring

[anarchopaperclip]

Damn no! The lecture is full of geeky jokes. It would have been much more austere if it was my physics professors telling the story.

[crpdv]

for pluto its the same if its planet or not ,Brown thanks for discover Eris,but about pluto you are a stupid astronomer,and you are very wrong

[TheMarchiz]

Mike Brown..mabe Eris orbiting a Brown Dorf..so that why his orbit is so elongated..

[anarchopaperclip]

Eris' orbit isn't that elongated when compared to Sedna's. Also, if there were some brown dwarf out there, that is a planet more massive than Jupiter, there would be some real big anomalies in Neptune's or Uranus' orbits, which is not the case.

Also, unless if the brown dwarf is much more massive than the sun, which is impossible, Eris couldn't go around the sun like it does. It would do some circles away in a corner of the solar system.

[Pitaboel]

I saw this other docu where they claim Earth was hit by a 'mars sized' object a very long time ago.

Maybe Eris was that planet; crashing almost out of orbit..

[pennelp7770]

I thought Eris,nibiru,planet X are the same thing????

[anarchopaperclip]

Yes, if you are one of those New Age naive zealot who think the world will end in 2012.

Eris is one of many trans-neptunian object, currently 3 time farther than Pluto.

Nibiru is one hoax of a planet supposed to collide Earth in a near future.

Planet X was an obselete theory claiming there was a giant (jupiter-like) planet farther than Neptune, in order to explain Neptune's orbit anomaly. In the early 90's, Voyager 2 found there was no such anomaly, and thus no need for a Planet X hypothesis.

[zendarx2]

I have a question, during the q and a Mr. Brown said the 8 planets are on a circular orbit. As I always understood, they are on an elliptical orbit not circular. Was this a mistake or what? Interesting video by the way, thank you for explaining Plutos demotion, and all the other cool things discovered some what recently.

[FeynmanMH42]

I think he meant that the elliptical orbits of the eight planets are very nearly circular, whereas the orbits of the dwarf planets are all much more eccentric and elliptical.

[zendarx2]

I knew they were elliptical so it was a mistake but wanted to check with others.

[zendarx2]

Thanks for confirming, I appreciate it.

[Kenzofeis]

An elliptical orbit is sort of an oscillation, and the object meets larger braking effects (damping of oscillation) so it will with with hight probability assume a near-circular orbit, in time.

A near-circular orbit is "near-equilibrium" and equilibrium is always sought.

Look at the circle as "optimum" and non-circular as oscillations around this base-"line". Also, a curved motion is a acceleration in itself, just something to think about.

[anarchopaperclip]

They are elliptical, though what he meant was that they look almost circular when compared to trans-neptunian stuff. Sedna is more than 10 times (1000%) closer in perihelion than in aphelion, while the Earth's at its closest from the sun is only 2% closer than it's farthest point from the sun.

[needformadness23]

holy shit 1 hour long lol im not going to watch all of it but i will watch some

[Erandhitha]

Very Kool info. Lov it.

[juan339777]

and haw they can calculate the truly orbit if they found recently.....???i dont know much about sience english either, but i think they are trying to justify something, but it gives a lot of explications for something so insignificant or it isnt??......its a planet that maybe never were going to know.....so why so many explications??

[wratched]

They use a process called "precovery." They look back at pictures taken years before and track its movement. Many pictures of the object were taken by people who had no idea it was there.