A Planet Literally Boils Under the Heat of Its Star
The Bad Astronomer writes "Astronomers have found what appears to be a planet so hot it's literally vaporizing, boiling away from the heat of its star. KIC 12557548b was found using the transit method, periodically blocking some light from its star as it orbits around. But the amount of light blocked changes every transit. Given it's less than a million miles from the surface of the star, astronomers interpret this (PDF) as the planet itself turning to vapor, and the expanding cloud of rock-laden gas is what's blocking the starlight. The planet is most likely somewhat bigger than Mercury, but losing 100,000 tons of matter every second it'll only be around another few hundred million years."
Not a good alpha site?
Seems like a good place to send all those Lawyer wannabe Astronauts.
Hey, it would be a good start.
I already purchased a lot there to build a vacation bungalow. How can I sue my space real estate agent?
"but losing 100,000 tons of matter every second it'll only be around another few hundred million years."
Is that 100,000 tons at Earth-normal gravity or at this much smaller planet's (although possibly denser?) gravity?
GreatBunzinni has been posting anonymous accusations listing a whole bunch of Slashdot accounts as being part of a marketing campaign for Microsoft, without any evidence. GreatBunzinni has accidentally outed himself as this anonymous poster. Half the accounts he attacks don't even post pro-Microsoft rhetoric. The one thing they appear to have in common is that they have been critical of Google in the past. GreatBunzinni has been using multiple accounts to post these "shill" accusations, such as Galestar, NicknameOne, and flurp.
That's not the problem. The problem is that moderators gave him +5 Informative and are now modding down the accused, even for legitimate posts. Metamoderation is supposed to address this by filtering out the bad moderators, but clearly it's not working.
This "shill" crap that has been flying around lately has to stop. It's restricting a variety of viewpoints from participating on the site and creating an echo chamber.
If the mass is boiling away then it has to be in a spiral orbit and will intersect with the star soon. It is not plausible that it will be in orbit until its mass is gone. This entire "justification" (not science) of the observation is not likely as the star *has* to be falling out of orbit if its mass is decreasing...which implies many things left unanswered.
It's numbers like this that really make my head spin.
Yes, I get that planets are big items, and space is big and vast ... but I can't even begin to imagine the sheer amount of material we're talking about in even just a few hours, let alone the next "few hundred million years".
Anybody got a car analogy or something which might put these numbers into a little better perspective for those of us who don't work on scales like this?
I can't even begin to wrap my head around it ... a google search for one of the biggest things I could think of says that a Nimitz class aircraft carrier is about 101,000 tons. I saw one once, and it was utterly huge.
The idea of something that big boiling off every second for a few hundred million years makes my head hurt.
Lost at C:>. Found at C.
How do they come up with star names? Are they named after some Microsoft OS update.
The universe seems too incredibly wasteful to be designed by a God.
If it was that close to begin with, how'd it coalesce into a planet in the first place? Either this planet has been spiraling in for eons, it's a victim of a collision, or the star has been getting warmer since planet formation.
Don't trust any concentration of power.
Anyone else got the planet Crematoria in it's mind?
The title of this article currently is "A Planet Literally Boils Under the Heat of Its Star".. It should probably say "A Planet that Literally Boils Under the Heat of Its Star".. To clarify that not every planet boils under the heat of it's star..
This space for rent, inquire within.
It's a good place to place solar panels.
> but losing 100,000 tons of matter every second it'll only be around another few hundred million years."
Better get it while it's hot!
Get it while it's hot.
"Space is big. You just won't believe how vastly, hugely, mind- bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space." -- Douglas Adams, "The Hitchhiker's Guide to the Galaxy"
And really, it applies not just to distances, but masses, speeds, etc. As a rule of thumb, if it even deserves being mentioned in astronomy, it's frikken mind-bogglingly big.
The Earth, for example, is 6x10^24 kg, so basically 6,000,000,000,000,000,000,000 tons. Or about 600,000,000,000,000,000 Nimitzes.
Or more to the point of the planet being discussed here, they say it's a little bigger than Mercury, which in turn is 3.3x10^23 kg. I.e., 330,000,000,000,000,000,000 tons.
Yeah, that's the kind of numbers that astronomy is about. Well, not really. These are small planets. Now stars and black holes and galaxies, that's the real bread and butter. And you can pretty much stick the zero key down and go brew some coffee, if you want to write the weights for that.
And then come the distances, yes. Douglas Adams was certainly up to something there.
You know where in Men In Black, agent K says, "You want to stay away from that guy. He's, uh, he's grouchy. A three hour delay in customs after a trip for 17 trillion miles is gonna make anybody cranky." You'd think 17 trillion miles is half-way across the galaxy, right? Actually the nearest star, Proxima Centauri, is 25 trillion miles away. So that alien would have had to make a stop at some cosmic gas station in between, if he only had a 17 trillion miles trip.
It's things like these that... well, let's just say they seriously put the kibosh on most nerds "we should totally do some SF thing right now" scenarios. E.g., since we talk mass, there are all the "oh, let's terraform [insert planet]" stupidities. Yeah, I don't think any of those actually calculated how many trillions of tons of ice comets they'd have to divert into Mars to make oceans and whatever their fantasy scenario involves. (There are 1.4x10^18 tons of water on Earth for example.) Nor where they'd come from, nor what the energy budget for that would be.
A polar bear is a cartesian bear after a coordinate transform.
This universe is the beta version; God had to rush it out because the PHB promised the customer a bunch of features that weren't in the original design. He'll work these bugs out when he has time, right after he finishes commenting all the code for the benefit of the next guy who works on the universe.
I want peace on earth and goodwill toward man.
We are the United States Government! We don't do that sort of thing.
I strongly recommend reading the abstract, it's very descriptive and easy to understand I wish more abstracts were like that.
By the way, what's the deal with describing them simply as "astronomers"? Better than the all-too-often-used "scientists" I suppose, but wouldn't it be even nicer to write "a team of astronomers led by Saul Rappaport from M.I.T."? Scientists are people with names, and the more we use them the more we raise the status of pursuing a scientific career. Science needs more superstars!
This is what happening to Earth! Global warming is FUD!
something totally different could be happening.. nice theory tho.. maybe some aliens have occupied that planet for its rock and are just chipping away at it.. maybe there is nuclear warfare going on over there.. who knows
If this planet were a hot car driving down the highway, the boiling mass would be about a 100 bacteria falling off it every second. And each and every one of them is of the very finest British manufacture.
Since there is less and less land, wouldn't that make it more and more valuable?
You could say you bought a hot commodity.
Using telescopes to peer at super-hot stars stripping their companions usually gets you arrested.
You are aware that once our planet spun far faster and that far away moon practically skimmed the tree tops? Things change, the world we know as earth would have been unregonizable a few hundred million years ago, which for astronomy is yesterday.
MMO Quests are like orgasms:
You may solo them, I prefer them in a group.
Anything going wrong will cause the ship to 'spiral in'.
I say GTF out AC. Don't you have a farmville crop to wank over?
John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
I also hate 'mall utility vehicle' drivers. They are almost as lame as hybrid drivers.
John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
If this object is the mass of Mercury, then it's mass is 3.3 x 10^23 Kg.
= 3.3 x 10^20 metric tonnes
If it's vaporizing at 100,000 metric tonnes of matter per second, then it will exist for
3.3 x 10^14 seconds
or
~= 10,457,068 years (assuming a year is 365.25 days long)
FWTW...
The H2 is a chevy blazer with a different body, tires, and suspension. Like the H2 is a suburban. They share the same frame.
A large quarry might extract 5 or 10 million tonnes annually. Lets say 10 million tonnes for ease of use.
That is about 10/52, meh call it 200,000 tonnes a week.
200,000/7 about 30,000 a day.
30,000/24 about 1200 an hour
1200/60 about 20 a minute
20/60 about 1/3 a second.
0.33 x 100,000 tonnes/sec = 33,000...
Sooooooo its like about 33,000 very large quarries digging up the planet.
No idea how many we have currently operating on Earth. Of course we aren't vaporizing it and ejecting into space either.
You know I just want to say that I'm really disappointed in just how close to their stars a lot of these exo-planets that have been found so far are. And it just seems to keep on getting worse. I mean - now they're boiling away for Pete's sake!! Isn't there something that astronomers can do to halt that kind of nonsense? I mean at this rate we'll never find another suitable planet to move to and then what happens to us?
From TFA, the reason why the gas was leaving the planet was because of it's small size. Presumably, the (similary gaseous) atmosphere of Earth doesn't float off into space because the gravity here is much higher.
Duh. The also cost about $15K more and still have _lame_ front axles. Never seen one on a trail, only in mall parking lots.
Unimogs are awesome though. Kind of pricy. Best thought of as Mercedes-Benz four wheel street legal tractors.
John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
Well, Wikipedia tells me that the Library of Congress holds 22,194,696 books, 109,029,796 items in nonclassified (special) collections, and roughly 15,868,905 other items including "incunabula (books printed before 1500), monographs and serials, music, bound newspapers, pamphlets, technical reports, and other printed material".
Assume the average book weighs about 1 pound (call it 500 grams to make the arithmetic easy).
Assume that the bulk of the 'special' items are letters & other similar items on single sheets of paper. One sheet of letter-sized paper weighs about 5 grams, give or take.
Further assume that all the other stuff averages out to the weight of a book per item.
So that's 109,029,796 x 5 grams + ( 22,194,696 + 15,868,905 ) x 500 grams, or about 19,577 tonnes of material per Library of Congress.
The mass lost by this planet is thus 5.1 Libraries of Congress per second.
If you include the buildings the Library of Congress is housed in, I have no idea what they weigh. I'm going to assume all of them together weigh about the same as the Empire State Building, or about 330,000 metric tons.
So including the buildings, the answer is thus 0.286 Libraries of Congress per second.
Hope that clears things up for you.
how did it form in the first place?
http://xkcd.com/852/