Documents Classifying galaxies is hard, and different people do it different ways Except for nearby, we can...

Slide 1 Slide 2 Classifying galaxies is hard, and different people do it different ways Except for nearby, we can only see bright galaxies I will ignore dwarf spheroidal…

Documents The structure of our Milky Way galaxy: a container of gas and stars arranged in various components.....

Slide 1The structure of our Milky Way galaxy: a container of gas and stars arranged in various components with various properties.. Gaseous halo? ~ 6 x 10 10 solar masses…