Classifying Galaxies & Exploring the Milky Way (per. 5)

For this part, you will practice classifying different galaxies using the system E. Hubble created. Place each galaxy picture into the appropriate category (Elliptical, Spiral and Irregular). The Irregular Galaxies are any that do not fit the shape for Elliptical or Spiral Elliptical Spiral Irregular Who created the classification system for galaxies? Albert Einstein Johannes Kepler George Lemaitre Edwin Hubble What else did he discover? What type of galaxy is the Milky Way? spiral elliptical irregular Watch this video, and use what you learn to help you answer the questions that follow. Where is our solar system located within the Milky Way? in the center at the very outermost edge about 2 of the way out, on one of the arms What is our biggest, closest galaxy neighbor? Andromeda Sagittarius Messier When we see the Milky Way in the night sky, what are we actually looking at? radiation from the black hole in the center one of the spiral arms stars in the very center of the galaxy What did scientists figure out Sagittarius A star is? a globular cluster a supernova a black hole Scientists estimate that our galaxy is about 10x the mass of what we can actually see. What makes up the difference between what we see and what we can't? stellar radiation dark matter globular clusters