Ok What Is At The Center of the Galaxy?

Question

I always wanted to know this is it a giant star is it a black hole is it a giant cluster of stars? what is it?

Answer 1

Scientists believe (using the orbital speed of stars near the centre and x-ray and gamma ray observations) that a supermassive black hole called Sagittarius A* (around 2 million times the mass of our sun, with a radius of about 120 AU) is at the centre of our galaxy. Something this massive and this small can only be a black hole (based on gravitational physics).
They also believe that most large galaxies all have supermassive black holes in their centres.

Answer 2

Hello Peta:

At the center of the Milky Way Galaxy is a massive cluster of stars and dust that is so dense that it appears to be a gigantic ball of light. It is theorised that a black hole also exists there.

Photos and illustrations of the Milky Way all show a disk with something like a white, child's marble at the center. This white marble is the dense cluster of stars and immense accumulation of dust. It is such a dense mass that the individual stars within it may not be seen.

Answer 3

A black hole is at the center of every galaxy, what makes a black hole, a black hole is firmed when a massive star collapse in on it's self, just like our sun, one day when it starts fusing helium, it will start to grow, then collapse in on it's self to form a dwarf star or pulse star, it's not near big enough to form a black hole, like the massive large stars that are billions of times bigger than our sun.
A super large star is just one star, not a cluster of stars.
When you look at a cluster of stars, these clusters are not as they appear to the eye, every star in a cluster are millions of miles from each other.

Answer 4

There's clear evidence it's a super-massive black hole, on the order of a million times the sun's mass. Tracking stars very close to the center shows a that some make almost snap-turns on their closest approach, and there are huge emissions of X-rays on occasion, indications of large masses falling into the black hole.

Answer 5

It's a super black hole, made of hundreds or even thousands of black holes fused together. No kidding. It's the most credited theory out there.

Answer 6

super massive black hole. So large that the surface density is similar to water, of course the extreme gravitational forces will rip your space ship apart as you head toward the event horizon

http://news.nationalgeographic.com/news/2005/11/1102_051102_black_hole.html

Answer 7

It is presently believed to be a massive black hole. There are clouds in the area, so data is scarce.

Answer 8

it has been said there is a very massive black hole is at the center

Answer 9

at the center of the milky way is a black hole.slowly eating up our galaxy