Black hole evidence in the centre of our galaxy

[shakenbake147]

The comments here depress me

[yourmajezty]

this is bullshit

[Karionfabe1]

Black holes are theories, people should understand that and this is hardly evidence but it's really really interesting

[henrikmk]

@Karionfabe1 When doing calculations, based on observations of those stars, they can only orbit that way and at those speeds in the presence of an object with around 4.1 million solar masses.

The innermost star gets as close as 17 light hours from the object, moving at around 2% of the speed of light and is not torn apart. That indicates that the object is quite small with an extremely large mass.

This means, the object can only be a black hole.

[megamilmil]

This is very interesting, but the only "proof", right?

[coldarc]

everybody knows when you move further away from the sun the weaker the effect of gravity. when you have a planet with its own gavitational field the local effect of that gravity cancels out the weak gravitational effect from the sun. that locally overpower the sun´s gravity. if you spin a flywheel give it lots of speed its force increase propotional to the increase in conserved energy. gravity from a planet behave in a very simmilar manner. instead of mass it use waves of energy from ionisation.

[coldarc]

its somthing you guys have to get in to your heads. when a planet move around a stars time is slowed down on the star and go faster on the planet. that means the time the planet use to move in distance is shorter on the star than it is if you stand on the planet. observing one orbit one year from earth is not one year in one orbit if you stand on the sun. here is the interesting part, when you stand on earth you dont experience time dilation from the sun. for the sun earth is antigravity.

[MrSilver222]

If theres a huge Black Hole in centre of galaxy why its so bright, it should eat all nearest stars so there would be almost no light at all

[Joterike]

@MrSilver222 The stars orbit the black hole.

There is a black hole in the center of all galaxies, we are on the very edge of our own galaxy.

the center of our galaxy has older stars, if earth was located in it, there would not be a dark nighttime.

The black hole does swallow stars, yes, but its its like water going down a drain, and some of these older stars can swirl around this hole for thousands to millions of years.

[Saphireous]

Would anyone know what the semi-major axis, mass, periods, radius, and velocities of those orbiting stars would be relative to the black hole?

[Krackonis]

If you remove all the other sources of energy and obey the dogma of Einstien then it MUST be gravity of a nearly infinite mass. Of course, if you don't assume anything and look at the actual pictures you can see threads, wisps of 'gas' and ribbons of glowing mist. Well if you understand that 'gas' is not a 'gas' but a Plasma, then study Plasma physics in a lab you call this event a "Plasma Pinch" or "Bennet Pinch" a typical electric phenomenon. Black holes are fantasy.

[400758]

It will never ever eat the Earth, because it's 27,000 light years away. So we're nowhere near its gravitational field.

[KibbyCC]

Of course we are in it's gravitational field... why do you think our Sun orbits it, albeit far out.

If the sun were free of it's gravitational pull we'd fling off out of the Galaxy.

That said we're 27,000 LYs from it's event horizon, so don't expect to be gobbled up for billions upon billions of years if ever.

[Jossman123456]

What? Sorry but no object in the universe can be 'outside' a gravitational field of anything.

I think what you mean to say is that Earth is 27,000 light years away, therefore the gravitational field to far too small to take into consideration.

Every single object which has mass also has a gravitational field, ost of them are jsut too small to bother worrying about. The graviational constant, G is of course 6.67x10^-11 which is a very small force.

[cek100]

amazing

[MemiLeigh]

I'm assuming that they're attempting to track the elliptical orbits to pin point where the black hole is... So where exactly is it? I mean you don't give any info on that.

[moebiusonline]

You're right. The presence of the black hole is guessed from the motion of the stars around.

[Anarcho134]

will this eat the earth?

[cek100]

maybe in far far future

[JumpstyleDaniel]

its more likely that or sun explodes or andromeda galaxy that hit ours, than our black hole eat us.. but before all that, we humans, are all dead, if by an astrioid, if by our damn selfs

[poweressen]

@JumpstyleDaniel Currently that "black hole" is spreading his energy and giving us the opportunity to live and think by keeping us away from the deep abyss.

[Jossman123456]

No it wont eat the earth. We are orbiting it :)

[glcrazy]

The black hole is at the crosshair, see how the stars move more faster when they approach it.

[TubeYouGuru]

@MemiLeigh you cannot actually see a black hole. That would in theory, be impossible. Because as light itself, cannot escape, there would be nothing emitting or reflecting for you to see... Rather you can only observer the the effects it has on it surroundings., which this video is showing

[nicholaswright2006]

@MemiLeigh According to the video here, the lack hole is "guessed to be" exactly where the crosshairs lie in the middle of the screen.

[halopro118]

you should already know that there is a black hole in our galaxy.. there is a massive black whole in every galaxy but most aren't active..

[highmunny]

this is so fake i could make a way better one douche

[glcrazy]

fake ? dude, this is computer generated graphics showing what we can't not see in visible light because of the dust in the center of the galaxy. If it would have been real you would of seen only dust. The quality of the graphics is of no importance, it is there just to show the orbit of the stars according to the data they collected using (nonvisible light) telescopes, because looking at numbers isn't very useful.

[highmunny]

well it looks fake, and im not doubting the existence of black holes, im pretty sure theres a black hole in the center of ever galaxy

[jikarutakihira]

actually this is infrared imagery from 1992-2006 of actually objects near the center of our galaxy. These may or may not be stars but they (whatever is giving off infrared rays) are moving at tremendous speeds, light years of movement in 8 years is insane. And to think we caught it on camera...even more insane.

[highmunny]

ENGHHH!!! WRONG!

[T2theH]

Very stupid, these people assume movement of stars in this particular pattern = black hole

[spacecoke]

T2theH

they don't assume.. they study they research and they calculate.

[glcrazy]

How many astronomy degrees do you have ? If you know nothing about this then stfu.

[gibsonj200]

im not sure what actualy happening here? can anyone shed some light on this.

[hoser4]

Each frame of the animation represents a single infrared picture of the stars at the center of our galaxy. Accumulated over many years, you get an animation of how the stars move. What you're looking at is a like a home movie: a collection of stars orbiting an optically-invisible object (allegedly a black hole) over a 15 year period.

[glcrazy]

Well, the black hole in the center has a massive gravity pull. When stars get close ( but not too close, or bye-bye star :)) )they gain tremendous speed, which means there has to be something massive there, i.e. a black hole.

[Krackonis]

If only the universe was composed of particles and empty space. It's not. It's a rarified plasma, and Sag A is a Plasmoid. Theories of motion that ignore electromagnetic effects will be mislead at best, erroneous at worst.

[glcrazy]

pseudoscience. :)

[sentient7of9]

I was just about to upload this clip! It apparently took the researchers 15 years to gather enough data to make this short clip. Big up yourselves, researchers!

[OhWhatADizzaster]

OMFG 0_o