THE MILKY WAY

Our Home Galaxy

GALAXIES

3 Main Types

•Spiral/Barred

•Elliptical

•Irregular

MILKY WAY

•Spiral Galaxy, type Sb

•Difficult to observe

•Looks like spilt milk in the sky, hence the name

STRUCTURE

•Disk

•Galactic Bulge

•Halo

Galactic Bulge

•Consists of mostly older stars, •Densely Populated•May Contain A Black Hole At The Center

Galactic Disk

• Younger Stars Are Found

• Where Our Sun Is Located•Spiral Arms Present

Galactic Halo

•Hard To Detect

•Little Gas And Dust

•Old Stars

GALACTIC NEIGHBOURS

•Small and Large Magellanic Clouds•Sagittarius Dwarf Elliptical Galaxy

•Andreomeda Galaxy

THE LOCAL GROUP•Galaxy

Cluster•About 20 Galaxies

•1 Mpc Across

•Mostly Irregular and Elliptical

Our Galaxy Also Interacts With Others

THE END