The Milky Way Galaxy
A Spiral in Space

April 3, 2015, jeb

Outline


Messier Objects


Structure of the Milky Way


Types of Stars




Population I Stars

Population II Stars

Galactic Bulge

Galactic Disk

Galactic Halo


Star Clusters

  1. Galactic (or Open) Clusters
    Hyades cluster
    • Population I stars
    • young
      (like Pleiades)


  2. Globular Clusters
    M80
    • Population II stars
    • about 10 - 12 billion years old

Milky Way Facts


Measuring the Milky Way


Orbital motion of the stars in the Milky Way


Tracing the Milky Way's history

Very important clue on evolution of galaxy:

Milky Way has formed as it is through Evolution


Is the Milky Way a Spiral Galaxy?

A Puzzle of the Arms

Theories of Arm Formation


The Mass of the Milky Way Galaxy


Center of the Milky Way


Black Hole at the center of the Milky Way?



Summary