Journey to the Galactic Center
Author: Stefanie Jenkins
The center of our Milky Way Galaxy, located about 27000 light years from Earth in the direction of the constellation Sagittarius, is occupied by a supermassive black hole. This black hole contains over 4 million times the mass of our Sun in an area smaller than half the orbit of Mercury. Matter accreting into the black hole is heated up to millions of degrees, which makes the area shine bright in radio and infrared waves. This radio source is called Sagittarius A*; the black hole itself cannot be seen. en.wikipedia.org Over the past 16 years, astronomers have tracked a full orbit of a star, S2, around the black hole. At it’s closest point (perinigricon), S2 comes to within 17 light-hours of the black hole. From studying the Keplerian motions of S2 and other stars near the Galactic Center, astronomers have determined that these stars must be under the influence of an enormously massive, compact object. The only celestial object that could meet those requirements is a black hole. A huge black hole. This video begins with a picture showing the central 3 light years (central parsec) of our Galaxy. It then goes into a full zoom from our viewpoint to the Galactic Center, then shows the orbits of various stars around the black hole. Credit: ESO apod.nasa.gov
Video Rating: 4 / 5
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Where the hell are we!!!!?
great video.
Below someone asked about impact velocity of an object falling into the central black hole. Any object approaching the singularity would have its velocity approach the speed of light.
love the video really good
Very enjoyable thank you
love the video really good
i enjoyed this vid
i calculated with g(star)=fn*m/r^2 that an object in that distance has an
acceleration of less than 1 m/s ^2 (r is 2.5 e13 meters)
the acceleration on the surface (r is the distance mercury-sun) is about 157740 m/s^2 what would be the maximum speed of an object having an impact on the black mass giant???
i calculated with g(star)=fn*m/r^2 that an object in that distance has an
acceleration of less than 1 m/s ^2
the acceleration on the surface is about 157740 m/s^2 what would be the maximum speed of an object having an impact on the black mass giant???
The orbit of the S2 star is 15.56 years. Astronomers have observed it complete a full orbit
if the diameter of the orbit is 2 light days as seen in 2:22, how long does one trip around the black hole take? this has to be much shorter than a mans lifetime (for example no one observed the trip of jupiter but calculated it) =means the incrediiiiiiiiiiiiiiiiiiiiiible mass of the black hole.
described by newton as an equilibrium between gravity and escape forces. but if i would explain this to everyone i would be einstein. a physical figure was thus named by newton
the beat at 0:38 ruined the epicness lol
They’re orbiting it. But, eventually they’d fall into it. All of them.
Did you meet The Grox on the way there?
For something to fall into a black hole, it must pass the event horizon. A planet can literally orbit a black hole without it having any diverse effect on it’s orbit. A black hole with the relative mass of our sun would still function as the anchor of orbit for the planets, albeit, there would be no light, no warmth, and no life.
is it just me or does anyone else think the earth is an egg?
it is as same as saying why electrons dont fall in nucleus since they are negative and positive resp.Blackhole doesnt creat so great force to absorb planets in it for years in laters stage it becomes stronger than ever and then absorption starts
So, um…why don’t those stars fall into the black hole?
It’s going to suck up “S2″ mentioned later in the video. The rest of the stars are merely orbiting for the time being.
-Max
Exactly. They need 2x the resolution they have now and they’ll be able to see it.
-Max
Geologists have used earthquakes to study the Earth’s interior. Same goes for the Moon, and even the Sun! Check wikipedia’s entry on the Structure of the Earth
does anyone know the truth of the center of the earth…saw a Journey to the Center of the Earth…with all the conspiracies and cover ups it makes you wonder…have trips been made there to discover the truth…any pics or vids or audios from the trips…where do i find into
so what is happening at 1:20?is black hole sucking up all those stars??
What is the diameter of these BHs? Ours is approx 94 million miles.
I know mass has nothing to do with size, so could this be what they were speaking of?