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Milky Way Galaxy

Learning Goals What We Should Know. Size, Shape and Properties of the Milky WayDetermination of Distance to Stars in the Milky WayMeasuring Gas in the Milky WayDetermination of the Mass of the Milky WaySpiral Arms Structure and Star FormationPopulation I and II Stars Density Wave TheoryThe

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Milky Way Galaxy

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    1. Milky Way Galaxy

    2. Learning Goals What We Should Know Size, Shape and Properties of the Milky Way Determination of Distance to Stars in the Milky Way Measuring Gas in the Milky Way Determination of the Mass of the Milky Way Spiral Arms Structure and Star Formation Population I and II Stars Density Wave Theory The Galactic Center Formation of the Milky Way

    3. 17 Milky Way Galaxies Reading Assignments Pathways to Astronomy, Schneider & Arny Units: 70 73 Online Resources: Course Website

    4. Milky Way Properties Number of Stars Mass Spatial Distribution Shape Star Properties

    5. Number of Stars in Milky Way 100 to 200 billion stars Mass Stellar mass: 2x1011 Solar Masses Gas: 8x1010 Solar Masses Total Mass: 6x1011 to 1012 Solar Masses Distribution of Spectral Classes

    6. Milky Way Galaxy Properties Determination of Spatial Distribution of Stars Observations of numbers of stars and locations Problem of the effect of dust

    7. Observations of Milky Way Distances to Clusters (Globular) using Variable stars

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