Ever since that awesome post by Mental Patient about .. ohh .. something ; I can't get it out of my head that someone thinks there is a black hole just outside our solar system. So i had a bit of a squiz here & there for info on the subject & as far as I can see the closest suspected/tested black hole to our current location is Cygnus XR-1 in the Cygnus Constellation ... thats 6000 light years away & thats not so close !
http://dem0n.qgl.org/images/mgifz/satellit.gif

or is it?
i runed m light off and on 6000 times i haven't found the black hole :( where is it?
ne seriasly... think about the ratio that is to the size of space and the size of our solar system...
oh s*** i dont know what i just said!
i'll shut up now

dem0n when jim runs for president ur so gonna be vp :)

isn't 1 light year from the earth to the sun?

no, that's 8 light minutes, or something

isn't it it takes 8 seconds for light to reach the earth from the sun?

or is it 8 seconds for light to circle the earth...
hmm maybe i should have actually listened in physics...

It is 149,600,000 km from the centre of the Earth to the centre of the sun. (ie: the orbital radius of the Earth which is known as 1 AU in astrophyzix) In a vacuum, light always travels at a speed of 299,792,458 meters per second , thats approximately 300,000 kilometres per second. On my handy dandy windoze calculator thats 8.3 light minutes from the earth to the sun. m4d pr0pz to the troglodyte !!! :o)
This pic shows the relativity of the other planet orbits ... big distances !
http://www.seds.org/nineplanets/nineplanets/gif/inner.gif
& this is a cool pic to show what a pipsqueak of a planet Earth is compared to the other solar system bits !
http://www.seds.org/nineplanets/nineplanets/gif/soletal.gif

I said there was a theory about a bH just outside or solar system. No spacecraft has been far enough to investegate. Its simply a case of 'this thing does that, so there may be a black hole here'

Moridin : I would be interested to know where this theory comes from & what evidence there is to support it. You don't need to drive a spaceship up to a black hole to know/suspect/theorise that it is there ! These are megabeasts of gravity & X-rays ! The orbiting observatories Hubble Space Telescope & Chandra X-Ray observatory where put in space to study these mofo's & it's very unlikely that such a massive x-ray source would go undetected if it was anywhere close to us. I am not saying that it is impossible ... just highly unlikely.
Also I wanted to post some astronomy pix n stuff :o)

hte bvlak holes iz bak iz thyz wel litsen up i no a blakhol n were it is isf u lok in dspac an shin u torh at a crtan plac au u canyt se wher u lite is pointn wtch mens thtat whn u lite is gon it iz meens it a blakhol n no mat hw big u ttorch iz if u pont it at a certn polac it gos in th blak hol i kno ths coz iz don nit it ben provn als if u was to lok at blk hol long euf u becm bl;ind czo when al u lite iz fil up in th blak hol the no more rooms n it shots th lite out at htha sped of lite n if u it hits u in eyses u can go blinsd th is no provn but i kno abot it coz i seen it

does your keyboard come from japan? or china.

because mine seems to type english.

lol

I honestly can remember where I read it, ill find it and get back to you. And the fact that you can find a black hole without seeing it was my point in the first place, you just can absolutely prove it.

Heh ... well X-rays & gravity are the only ways you would ever be able to "see" a black hole. No visible light is emitted or reflected from the event horizon so "visual" evidence is irrelevant. My point is that if there was a closer black hole than Cygnus XR-1 then it's massive gravity & x-ray emmissions would not escape detection. Of course there is no absolute proof ... there is no absolute proof of anything ! :o)
BTW: I am not having a go at you or anything ... this sorta stuff just interests me. I just see a few too many bogus astronomy web-sites with bizarro claims of extra planets hidden by the sun , pyramids n faces in the random dirt of Mars & so forth. DE-BUNK DE-BUNK ! :o)
http://dem0n.qgl.org/images/mgifz/spin.gif

stop it demon people might think you're smart
and i don't see any gif's for glow text

correction your first pic was a gif

funnily enough, I reckon I see heaps of black holes all the time, especially on these forums (haha, geddit)

Umm I noticed before that someone said that there we have sent no spacecraft beyond our solar system....well if Im correct we have....one of the Voyagers I think has passed Pluto (and therefore would be outside our solar system). Its not transmitting anything anymore I think.

Please correct me if Im wrong....

All this stuff on black holes is good to see....better than the bitching that usually goes on.

more moving gif's!!!

OMFG its BoBa!!!!!

this is really good s***, i like reading up on stuff like this, space...*sigh*

ok u would def be able to detect a balck hole close to our solar system. there is a black hole at the centre of our galaxy. Just because u cant see a black hole doesnt mean u cant detect it. It alters space time and has huge gravitational effects.

ohbooho blkholes who crs lets se if ione kils us who cares if one suks a lot o stuf in whio carses if 1 gobls stuf who cars if one eats stuf who cars thye iz wohles n they stel stuf that belongs to ourt univrs thre sdirty rottrs!! who cars scetrnly not anytn tha ggets sukd inbto on e who are weto judjge hols thhat wnan stealal stuf fomr ourt univrs thy is onl good for one thing eatn stuf n steealn stuf who carses notme ecpt if one stol my fokn sanga

wow, time altering shiznits! that's incrediblistic!

http://sif.I.know.any.good.animated.gifs/images/tran.thook

I apologise for my current lack of animated gifz :o(
http://www.synj.net/graphics/sorry.gif

ahaha, sif that aint classic trog

funnily enough, I reckon I see heaps of black holes all the time,

must be even more now that you've started playing cs :P

Manshoon: Yep Voyager 1 & 2 are both still ticking & both now outside the orbit of pluto. In 1993 the final ultra-violet experiments where concluded & now niether of them have enough fuel to heat the instruments to use. They can both still communicate ... they just don't have anything to say :o)
The last recorded location I could find was ~60AU from the sun ... pluto's orbit is ~39AU, That was in 1993. Pioneer 10 & 11 are out there somewhere too !
http://www.synj.net/graphics/ag/space.gif

lotta stuff out there !! :o) duble post ... nev0r!!!
http://antwrp.gsfc.nasa.gov/apod/image/9702/deep_hst.jpg

You wouldnt be able to see the black hole itself, no, but you may be able to see the visible light and matter being sucked into into it.

see the thing about space is, its black
and the things about black holes they is
they're black

There is a SWEET book called the FIVE AGES OF THE UNIVERSE buy some guy Laughlin and someone else (two nerds), talks s***eloads about bhs, like, its possible to have a blackhole 1/100th of a mm acros, but will have a mass 5X that of the moon. Sif that wont mess you up, also gives scenario of what would happen in the (highly unlikely) event of as blackhole cruising directly past earth. sweeeet... :) Anyways, bhs DO become visible, (like, with naked eye) but only as they're beginning to "evaporate" (ie you know the smart guy in the wheelchair ah... Hawking? yeah, his theory) they begin to glow like a little sun for a few K years, but no bhs will begin decaying till way after all the stars in the universe are long dead. Love that about astrophysics/quantum mechanics. It proves all this cool stuff will happen, but no-one will be alive to see it... lol.

well go read some hawking
lots of his stuff is good

if u had enough energy u could create a black hole

note the IF.

Most stellar black holes (black holes with a mass of 5-100 solar masses) are usually "visible" due to the binary system they are usually found in. Either with a star or a neutron star. The black hole's event horizon is itself undetectable to anything except gravity-wave measurement. With the companion star the x-rays that are emitted are from matter being drawn off the companion into the black hole. :o)
Vorador: As black as the ace of spades ! ;o)
StopShootingMe : Yeah man ! That hawkings theory of black hole evaporation involving virtual particals becoming real is a brain bender !!! Good Stuff !! :o)
*dem0n unbendz his brain

There have been interesting theories abuot using Black Holes as energy sources too. Maybe we can use them to power our QCs in a decade or so, eh :)

who spaded what in the ace - hole now?

Stephen Hawking and his theories are mad....

A Brief History of Time is a VERY good book to read if ya wanna know about that stuff....VERY good book!

Dont get those black holes confused with dark matter now :)

i sez it bfo i sez it agen hha u plpl is sily crzy!! u thkn stetve hawks is al that he da mna iz he wel if he da geniuds man guy y iz he can no tlk? al he do iz sit in a whelchar al day n he get comtpur to takl for him yeh he verty smart he acant evn talk hhaha n u belv this guy yeh i sure he kno wot he talk about hahah u crzy fokkrs is crzy!!

You mean, black holes aren't all swirly and stuff like on TV???

For the computer nerds amongst us (dont be shy fellas i know youre out there :P) there is also a trippy theory (legitimate theory, but not really practical :P) as to how you could theroretically make a computer out of a series of bhs, assuming you could move them into position, and that they wouldnt just form into a big conglomerate bh... Again, i empahasise IMPRACTICAL :P But still, have to admire the gits that would have wasted a year or two figuring out how to do it... Nerds! I salute you!!

Umm, You couldnt see a black hole, the whole thing about sucking light in in and stuff ...

You can see its effects though.


If there was a black hole just out side of our system, then we would all be pretty f***ed, no doubts about it.

We could send all our trash into it.
Like Mental Patient.

we all know u cant SEE the black hole, as it "sucks in light"

but u def can see the effects, u would be able to see the effects of the event horizon aswell.

You could have a little black hole, man. Theres three ways (currently known) that a black hole could exist, firstly theres the most widely known way in which a star with a mass equivalant to 5 or more solar masses karks it and collapes in on itself (make no mistake, THAT will mess you up :P) theres also the absolutely horrid beasts now thought to be found at the centre of evry galxy which routinely swallow other stars (again, needless to say, that, too is not conducive to your planets continuing good health :P) but theres also what are called Primordial black holes, which are beleived to have come into being at the beginning of the universe, and they can be as little as, like (i mentioned this above) 1/100th mm across, and have only the mass of a decent sized moon, or a very little planet... So that wouldnt even noticelby mess up the orbits of planets in our solar system if it was floating around somewhere nearby... Well, thats my two cents :)

PS: someone tell me how to change my FORUM password, amd how to post pictures. Cheers.

Heh, we would all be pretty f***ed if our Sun just f***ing died and turned all "black hole" on us, eh?

Indeed. :P

If the sun were to go bh, though it would be only approx. 1 km across... A black hole with the mass of the Earth would be the size of a marble. Trippy.

PS: How post pictures!?

the sun will not turn into a black hole
it will become a red giant and create a planettary nebula. all hopefully after we have skipped to another solar system.

HEY, where did my post go :(

lol one can only hope so. Sif we wont nail ourselves with nuclear armageddon or something first, though. :P

still, cant run forever, eventually even bhs will be gone, then one can pretty safely say we're screwed :)

Dilbert: previous statement was just an illustration of how dense a bh is even in comparison with a star, i know sun will go red giant... but we wont be any less screwed one way or another when it happens, i s'pose so it makes no difference :P

To include an image, enter: <IMG SRC="ImageName">
where ImageName is the URL of the image file.file.
And I know I said

I just see a few too many bogus astronomy web-sites with bizarro claims of extra planets hidden by the sun , pyramids n faces in the random dirt of Mars & so forth.

...but this is a pic of the South Pole of Mars !!! ;o)
http://antwrp.gsfc.nasa.gov/apod/image/0103/marscheese_mgs.jpg

lol one can only hope so. Sif we wont nail ourselves with nuclear armageddon or something first, though. :P

still, cant run forever, eventually even bhs will be gone, then one can pretty safely say we're screwed :)

Dilbert: previous statement was just an illustration of how dense a bh is even in comparison with a star, i know sun will go red giant... but we wont be any less screwed one way or another when it happens, i s'pose so it makes no difference :P

Thanks demOn. Here be a diagram of the ultra-crappy, yet still impressive bh computer...

Don't they think that there is some big bitchen BH at the centre of the Universe, that's slowly sucking everything in?
And that's why it's in a spiral type shape?
Just something I heard/read/something.

They think theres one at the centre of every galaxy. No-one knows what the Universe looks like... And yeah, they suck up pretty much anything that comes near... Hehe... 20 secs 'fore someone turns that last line into a dirty joke 'bout someone :P

You suck alot of...ah...straws?

StopShootingMe ... you have to first upload the picture to a host site somewhere on the internet ... or use the URL you originally downloaded it from.
Bob ... most galaxies have supermassive black holes (millions of solar masses) in there centres ...the big disk around them of stars, dust , gas & stuff is slowly all being drawn in. So incredibly slowly!!
http://dem0n.qgl.org/images/m63_subaru_big.jpg

give me some uber pictures of stars exploding and stuff dem0n! I need new wallpaper at work!

something that wont warp and look crap when I make it go 1024x768 :P

hhahh no uese explnain yhthis whakydo mr scinece stuf to bob he jusa fokkn clules numskul hay bobo u prol wil becom smatrtr if u iz bsash u hed on a brikwal 100tims r somthn don ttry lern sht it jst nbot gon happn mat stik tu shuvin fruite in u onwn blakhol

Here are some stars blowin up for ya :o)
http://dem0n.qgl.org/images/star_blows_up1.jpg
http://dem0n.qgl.org/images/star_blows_up2.jpg
http://dem0n.qgl.org/images/star_blows_up3.jpg

And who says computers don't teach you anything :)

"hhahh no uese explnain yhthis whakydo mr scinece stuf to bob he jusa fokkn clules numskul hay bobo u prol wil becom smatrtr if u iz bsash u hed on a brikwal 100tims r somthn don ttry lern sht it jst nbot gon happn mat stik tu shuvin fruite in u onwn blakhol"

I didn't understand a single thing you just said.
Come back when you can:
a) Type
and
b) Speak English


When matter get's sucked into a black hole, doesn't it just keep folding in on itself?

i did broke post :o(

how the fudge did this happen?

dem0n u should know better than to screw up image posting in such an extreme manner.

(sorry for the formalness but i just finished writing an analytical exposition essay on Macbeth :P )

Why cant i see the last 10 posts or so??? HELP?...

They're there, you just gotta scroll accross and they're all squished into a tiny little column on the far right.

dem0n set us up the bomb!

Of course you can see black holes, they would be the absence of light would they not?

if one was sitting in front of a few thousand stars and we had a nice telescope, you could quite easily SEE one.

And what the f*** is with these posts, they're huge blank nothings

How do you think you see things? Light bouncing off an object right? And black holes suck light into them dont they. So how exactly do you intend to see it?

Like someone way back up there said, you may be able to see the effects of a black hole, and stuff getting sucked towards it, but you wouldn't see the black hole itself.

You won't see a black hole with a telescope ... nice or other wise ! :o) Even the hubble just see the effects of the black hole on the matter closest to it. But the hubble duzzn "see" optically in the same way the human eye duzz. It breaks up the spectrum of light so that redshifts can be factored in. We can only really detect black holes from the x-rays emitted from the matter that is in the process of falling into the black hole or is being pushed away from the black hole by it's radioactive pressure. If a black hole is sitting in space with no matter left to feed it ... then the only way we could detect it at all would be gravitational distortion lensing ! errr ... or something ! :oP

P.S. i didn't close some image links properly ... thats why it was fuX0reed up before. Nats the forum champ fixed it up good n proper ! :oD

You can't see a black hole, but you can pretty easily tell where it is.

This stuff's cool dem0n keep it coming

d8D>

Hot off the press ! This pic was released by STSCI just 2 days ago & it's a ripper !
http://oposite.stsci.edu/pubinfo/PR/2001/11/content/0111w.jpg
It's a newborn star just condensed from the enormous gas/dust nebula N83B which is it now blowing away with its solar wind. When I say "just" I mean 30,000 years old ... a mere baby to our mega-billion year old sun.

Something cool demOn that i remember when you say gravitaional distortion lenses and such like, is that when you are near a black hole (really close, like in the millions of kms, not light years) its thought that at the edges you would get a field like at the edges of a drop of water, (thanks to gravitational effect on space-time continuem thingy-majiga) where you would get perfect images of objects otherwise WAY to distant to be seen with even the best current space or land-based telescopes (optical ones). Thatd be kinda cool. Not hugely practical though... Damn.

Gravitational Lensing could hide a black hole - you would just see stars if you looked it it, but those stars are actually behind it. The "hole" would be behind the light coming at you. It's only when you figure out where the light is coming from that you can infer something massive enough to cause what you see.

Once you figure out that _something_ is in there, you can infer it's a black hole by doing the calculations about how massive it must be based on the affect on light (erm, radiation). Once it gets to a certain critical size, the Chandrasekar limit I think it's called, it's massive enough that escape velocity from it exceeds the speed of light and boom there's your black hole.

Then you look for quantum particles that radiate from the event horizon thanks to quantum physics and you're home and hosed.

Oh and there's some trés cool pix here.

as far as im concerned that smart guy douglas adams, you know he wrote "the hicthickers guide to the galaxy" and the other realy smart guy, terry pratchett, have the best theroys on Life, the Universe, and Everything.

blow anyone else out of the water any at rate