EQ: What is our galaxy’s role in the universe? Our Universe EQ: What is our galaxy’s role in the universe?

Catalog spot check: Due Friday at end of class. Milky Way Catalog spot check: Due Friday at end of class. Inner & Outer Planets = done Heliocentric vs. geocentric = done Comets, asteroids, meteroids= almost done Today finish your galaxy page comets, asteroids, meteoroids, and begin your moon!

Our Galaxy: Milky Way Large groups of stars, dust, and gas Some have more than a trillion stars! Types of Galaxies: Spiral, Elliptical, Irregular Which type is ours and where exactly is our solar system located?

Spiral Bulge at center Spiral arms Arms are made up of new stars, gas, dust Milky Way is an example, orion arm

Elliptical Bright center Very little dust and gas Contains mostly old stars Massive blog of stars Look like spheres or is outstretched

Irregular Their shape is irregular Close to a spiral galaxy Large Magellanic Cloud

Let’s take a closer look. Brainpop Galaxy

Contents of Galaxies: Gas Clouds Star Clusters Origin of Galaxies: Quasars What is our global address?

Milky Way Brainpop Today finish your galaxy page comets, asteroids, meteoroids AC: Independent Study Pages