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(Slate)   And I shall call it...Mini Planet   (slate.com) divider line 28
    More: Cool, planets, exoplanets, astronomers, Kepler observatory, light-years, astronomical transit, orbits  
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4931 clicks; posted to Geek » on 20 Feb 2013 at 6:21 PM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2013-02-20 04:46:16 PM  
Pluto frowns on your shenanigans.
 
2013-02-20 04:54:52 PM  
Excellent.
 
2013-02-20 05:35:35 PM  
so THAT's a planet, but Pluto gets farked?
 
2013-02-20 06:30:02 PM  
That's no moon...


Click to enhermesenate

WAT?
 
2013-02-20 06:35:44 PM  

ManateeGag: so THAT's a planet, but Pluto gets farked?


Eh. The IAU "definition" of planet is kind of meaningless anyway, with huge amounts of grey area, and things that should be  planets but aren't because of technicalities. As our knowledge expands, we'll see increasing problems in this shortsighted definition.
 
2013-02-20 06:39:02 PM  
Tastes great, less filling!
 
2013-02-20 06:44:28 PM  

fusillade762: Click to enhermesenate

WAT?


Phil Plait is a tool.
 
2013-02-20 07:36:36 PM  
The exoplanet Kepler-37b

At least this planet is easier to file than planet 27B-6.
 
2013-02-20 07:40:36 PM  

andrewagill: At least this planet is easier to file than planet 27B-6.


How do you know?  For all you know there could be a brazillion planets just like it.
 
2013-02-20 07:41:49 PM  

ManateeGag: so THAT's a planet, but Pluto gets farked?


The term planet has no definition based on size.  This a planet because it's (presumably) cleared its orbit of any other objects.  (I'm saying presumably because if there was an asteroid belt we would likely have never detected it).

Pluto is no more a planet than Ceres, Makemake, Eris, or Haumea.
 
2013-02-20 08:18:37 PM  

meanmutton: ManateeGag: so THAT's a planet, but Pluto gets farked?

The term planet has no definition based on size.  This a planet because it's (presumably) cleared its orbit of any other objects.  (I'm saying presumably because if there was an asteroid belt we would likely have never detected it).

Pluto is no more a planet than Ceres, Makemake, Eris, or Haumea.


And they aren't planets because no one could possibly remember more than 9? Sorry, we should have craptons of planets if that's the breaks, not make it 8 cause a small subset of scientists couldn't think of a good reason to include Pluto that would exclude similar "non"-planets. At least a few of which there is no good reason to exclude.

Hell, if a planet the size of freaking Jupiter went rogue and ended up in orbit off plane around our son, it wouldn't be a "planet" either. That's just foolish.

Ceres is 950km in diameter, and in between Mars and Jupiter, orbits the sun at about 10 degrees off plane, and appears to have satellites/moons of its own. Stop me when this no longer sounds like a planet. Unless it's too small.

Pluto is ~2200km in diameter, has a significant moon, orbits at 17 degrees and has an oddly ovular orbit unlike the 8 planets and Ceres, possibly due to being a captured rogue "planet". The only reason it wouldn't be a planet is an arbitrary orbital distinction, which Ceres lacks.

Both Pluto and Ceres have really good planet qualifications and were arbitrarily excluded because we didn't want "too many".

You want to better define planet, fine. Make it based on size/mass/ability to sustain a spheroid shape/atmospheric capability, something logical  and reasonable. Why make it based on arbitrary planar guidelines and debris existing in an objects orbit?

\Moon needs looking at as a word far more than planet did. If you got a tennis ball into space, and could toss it around a planet, and get it orbit... BAM moon. Nice definition. Debris should not = moon. % size relative to planet, flat size... something. There are "moons" vastly smaller than asteroids. When 1km diameter can make a moon. That's a fail.
 
2013-02-20 08:19:41 PM  
2.bp.blogspot.com
 
2013-02-20 09:16:16 PM  

jigger: fusillade762: Click to enhermesenate

WAT?

Phil Plait is a tool.


So is, by definition, a jigger.
 
2013-02-20 09:21:56 PM  

ManateeGag: so THAT's a planet, but Pluto gets farked?


That's because it's still bigger then Pluto, hell our Moon is bigger then Pluto.
 
2013-02-20 09:25:43 PM  
If you're going to call this thing a planet then you'd better reinstate Pluto and reinstate it NOW or I will write so very many, MANY, angry emails!!
 
2013-02-20 09:35:42 PM  

way south: If you're going to call this thing a planet then you'd better reinstate Pluto and reinstate it NOW or I will write so very many, MANY, angry emails!!


Technically, the IAU definition only applies to Solar System objects. Exoplanets were deliberately excluded.
 
2013-02-20 10:25:52 PM  
Kepler-37b = 3,865 km diameter
The Moon = 3,474 km diameter
Pluto = 2,302 km diameter


Pluto is tiny, it's half the size of the United States, I'll never be a regular planet...let it go people
 
2013-02-20 11:10:06 PM  

hawcian: way south: If you're going to call this thing a planet then you'd better reinstate Pluto and reinstate it NOW or I will write so very many, MANY, angry emails!!

Technically, the IAU definition only applies to Solar System objects. Exoplanets were deliberately excluded.


dl.dropbox.com

Check your email.


/Kidding.... maybe.
 
2013-02-21 12:16:50 AM  

Mr. Fuzzypaws: Pluto frowns on your shenanigans.


you know what works for me?
calling it a planet
calling pluto a planet
and cock-punching the tools who think that they can come up with a definition for planet which wont need changing every 37 seconds.

(1) A "planet"1 is a celestial body that: (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.

so jupiter and saturn are not planets???
BHAHAHAHAHAHAHAHAHAHAHAHAAH
no seriously
Trojan points for jupiter and the rings around saturn
the CLEARLY have not cleared the neighborhood.
BWBABBBABABABABABA BABABABABABABABAB

/yes, I Know, they are working on new definitions of cleared neighborhood. LOLOLOLOL
/how is earth-moon pair not a twin planet? what will we do when we find twin planets which are even CLOSER in size??
/silly scientists
 
2013-02-21 12:18:56 AM  

Quantumbunny: Ceres is 950km in diameter, and in between Mars and Jupiter, orbits the sun at about 10 degrees off plane, and appears to have satellites/moons of its own. Stop me when this no longer sounds like a planet. Unless it's too small.

Pluto is ~2200km in diameter, has a significant moon, orbits at 17 degrees and has an oddly ovular orbit unlike the 8 planets and Ceres, possibly due to being a captured rogue "planet". The only reason it wouldn't be a planet is an arbitrary orbital distinction, which Ceres lacks.

Both Pluto and Ceres have really good planet qualifications and were arbitrarily excluded because we didn't want "too many".


in the end, it sounds like the whiners didnt want to have to deal with the reality that there are many more planets in our solar system than 9.
 
2013-02-21 01:07:20 AM  

namatad: Quantumbunny: Ceres is 950km in diameter, and in between Mars and Jupiter, orbits the sun at about 10 degrees off plane, and appears to have satellites/moons of its own. Stop me when this no longer sounds like a planet. Unless it's too small.

Pluto is ~2200km in diameter, has a significant moon, orbits at 17 degrees and has an oddly ovular orbit unlike the 8 planets and Ceres, possibly due to being a captured rogue "planet". The only reason it wouldn't be a planet is an arbitrary orbital distinction, which Ceres lacks.

Both Pluto and Ceres have really good planet qualifications and were arbitrarily excluded because we didn't want "too many".

in the end, it sounds like the whiners didnt want to have to deal with the reality that there are many more planets in our solar system than 9.


By that argument, all the asteroids should be planets too.  They too were originally planets.  But as more were found, it became a case of too many.

/If I was dictator of the IAU, I would stop calling gas giants planets to.  I would have rocky worlds big enough to be made a sphere by gravity and that orbit a star be planets.  Smaller rocky worlds orbiting a star would be asteroids.  The gas giants would be a separate class called, obviously enough, gas giants.  Ice worlds would Kuiper belt objects though I would shorten that.
 
2013-02-21 01:36:50 AM  
TheMysteriousStranger:

If I was dictator of the IAU, I would stop calling gas giants planets to. I would have rocky worlds big enough to be made a sphere by gravity and that orbit a star be planets. Smaller rocky worlds orbiting a star would be asteroids. The gas giants would be a separate class called, obviously enough, gas giants. Ice worlds would Kuiper belt objects though I would shorten that.probably go with the definition agreed upon as a useful notation by a quorum of people who have some education in the question and have pondered it..

Not picking on you in particular TMS, you were just the post before mine, but this is just getting silly.
 
2013-02-21 03:11:27 AM  

maxheck: TheMysteriousStranger:

If I was dictator of the IAU, I would stop calling gas giants planets to. I would have rocky worlds big enough to be made a sphere by gravity and that orbit a star be planets. Smaller rocky worlds orbiting a star would be asteroids. The gas giants would be a separate class called, obviously enough, gas giants. Ice worlds would Kuiper belt objects though I would shorten that.probably go with the definition agreed upon as a useful notation by a quorum of people who have some education in the question and have pondered it..

Not picking on you in particular TMS, you were just the post before mine, but this is just getting silly.


It cracks me up no end how tightly people get their panties in a twist over this. It's simply a matter of where one draws the line when playing "one of these things is not like the others." But OMG! Coming up with a new "dwarf planet" moniker to help classify objects into smaller and clearer categories as we learn more about our solar system - that is TOTALLY UNACCEPTABLE.
 
2013-02-21 04:13:31 AM  
This Pluto planet argument isn't funny anymore. If this continues to the time I'm an old man, which losers with no reading comprehension still whining about it i'll be forced to fire them. Out of a cannon. Into Pluto.
 
2013-02-21 04:39:59 AM  

dennysgod: ManateeGag: so THAT's a planet, but Pluto gets farked?

That's because it's still bigger then Pluto, hell our Moon is bigger then Pluto.


And Pluto is mostly made out of ice, and has an orbit which crosses the orbit of another planet...

Pluto ain't a planet.

=Smidge=
 
2013-02-21 04:43:40 AM  
www.smidgeindustriesltd.com
 
2013-02-21 05:06:10 AM  
Mike Brown came by my job for a couple nights earlier this month.  He'll be delighted that there's a new little planet for him to demote. ;)
 
2013-02-21 10:51:04 AM  

TheMysteriousStranger: namatad: Quantumbunny: Ceres is 950km in diameter, and in between Mars and Jupiter, orbits the sun at about 10 degrees off plane, and appears to have satellites/moons of its own. Stop me when this no longer sounds like a planet. Unless it's too small.

Pluto is ~2200km in diameter, has a significant moon, orbits at 17 degrees and has an oddly ovular orbit unlike the 8 planets and Ceres, possibly due to being a captured rogue "planet". The only reason it wouldn't be a planet is an arbitrary orbital distinction, which Ceres lacks.

Both Pluto and Ceres have really good planet qualifications and were arbitrarily excluded because we didn't want "too many".

in the end, it sounds like the whiners didnt want to have to deal with the reality that there are many more planets in our solar system than 9.

By that argument, all the asteroids should be planets too.  They too were originally planets.  But as more were found, it became a case of too many.

/If I was dictator of the IAU, I would stop calling gas giants planets to.  I would have rocky worlds big enough to be made a sphere by gravity and that orbit a star be planets.  Smaller rocky worlds orbiting a star would be asteroids.  The gas giants would be a separate class called, obviously enough, gas giants.  Ice worlds would Kuiper belt objects though I would shorten that.


Using proper logic, asteroids are too small to maintain a spheroid shape. They would not count, even the ones that were bits from an ex-planet.

Ceres and Pluto do both have hydrostatic equilibirium. As does Makemake (~1400km diameter and 29 degree off plane orbit) and Eris (~2400km diameter and 44 degree off plane orbit).
 
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