what is a galactic centre?

Answer 1

The point or region in a galaxy which the rest of the galaxy tends to orbit. Often a black hole, as is the case with the Milky Way.

Answer 2

The Galactic Center is the rotational center of the Milky Way galaxy. It is located about 7.6 kiloparsecs (24,800 LY) away from the Earth, in the direction of the constellation Sagittarius, where the Milky Way appears brightest. Scientists hypothesize that a supermassive black hole lies in the Galactic Center of the Milky Way, and most (if not all) other galaxies.

Proof of existence and location:

Because of cool interstellar dust along the line of sight, the Galactic Center cannot be studied at visible, ultraviolet or soft X-ray wavelengths. The available information about the Galactic Center comes from observations at gamma ray, hard X-ray, infrared, sub-millimetre and radio wavelengths.

Coordinates of Galactic Center were first found by Harlow Shapley in his 1918 study of the distribution of the globular clusters.

The complex radio source Sagittarius A appears to be located almost exactly at the Galactic Center, and contains an intense compact radio source, Sagittarius A*, which many astronomers believe may coincide with a supermassive black hole at the center of our Galaxy. Accretion of gas onto the black hole, probably involving a disk around it, would release energy to power the radio source, itself much larger than the black hole. The latter is too small to see with present instruments.

Answer 3

The Galactic Center is the rotational center of the Milky Way galaxy. It is located about 7.6 kiloparsecs (24,800 LY) away from the Earth, in the direction of the constellation Sagittarius, where the Milky Way appears brightest. Scientists hypothesize that a supermassive black hole lies in the Galactic Center of the Milky Way, and most (if not all) other galaxies.

Coordinates of Galactic Center were first found by Harlow Shapley in his 1918 study of the distribution of the globular clusters.

Answer 4

The Galactic Center is the rotational center of the Milky Way galaxy. It is located about 7.6 kiloparsecs (24,800 LY) away from the Earth,[1] in the direction of the constellation Sagittarius, where the Milky Way appears brightest. Scientists hypothesize that a supermassive black hole lies in the Galactic Center of the Milky Way, and most (if not all) other galaxies.

Answer 5

A galaxy is a collection of stars, planets, and other objects orbiting around a central gravitational point.

That point is the galactic center (or centre for you Brits).

Answer 6

I think it is also called the CORE OF A GALAXY...

This is the very Center of the Galaxy, where attraction amongst atoms becomes so strong & so tight to the extent that it eventually causes the Black Holes to show...

and this is the starting point for the TERMINATION & KILLING of the Galaxy, if I am not mistaken,,,

Answer 7

The center of mass for a galaxy. In most galaxies we see, we're recognizing that many have super-massive black holes at their center - including the ours.

Answer 8

That would be the black hole in the center of this galaxy . The black hole furnishes the gravity that holds every thing in orbit around the center.

Answer 9

galatic centre is what it is.. the centre of any galaxy where most of the mass of the galaxy is present and the stars present there are considerably older than others

Answer 10

It is the rotational center of any galaxy. Pure and simple.