Interactive Astronomy

The Milky Way

Galaxies | Milky way| Types of galaxies [1] | Structure of galaxies | AGN and Quasars

The Milky Way

The Milky Way is the name of our galaxy. A galaxy is actually the home of stars. The Milky Way houses Earth and its star, the Sun. The Universe is made up of galaxies which are like scattered pepper on a pizza. 

The constellation Sagittarius, where the galactic centre of our Milky Way is. the spout coming out of the teapot asterism leads to the galactic centre. Not the appearance of the Milky Way as a glowing cloud and the numerous star clusters in this image.

It is a huge spiral galaxy which consists of billions of stars and star clusters. All galaxies are flat, like planes, and so is the Milky Way naturally. As a result, the trillions of stars found in the Milky Way make up the Galactic Disk. A spiral galaxy has arms which appear to be swirling. You can picture it as something like the top view of a hurricane. The Milky Way’s arms are dotted up with young stars (associations), nebulae and gas clouds. 

The center of the Milky Way is known as the Galactic Bulge. It is a sphere consisting of massive, cooling red stars. In the middle of the Milky Way is the force which drives the universe, Sagittarius A*, a super-massive black hole whose enormous gravity keeps the Milky Way spinning. At night, we can sometimes see a thin vanilla-coloured layer above the horizon. That is actually the Galactic Equator of the Milky Way, which is the line at the half of the Milky Way, like the equator line on Earth.

Astronomers now believe that our Milky Way is not a Spiral galaxy from recent observations, but instead a barred spiral galaxy.

 

Galaxies | Milky way| Types of galaxies [1] | Structure of galaxies | AGN and Quasars

 

 

 

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