The Milky Way and Other Galaxies
1. Complete this table about the Milky Way
| Name | Type (E, S or SB?) | ||
| Diameter | Number of stars | ||
| Time to rotate | How far we are from the centre |
2. what are the following and where would they be found?:
a) the halo
b) a globular cluster
c) an open cluster
d) the nucleus
3. Describe the differences between
a) an E0 and an E7 galaxy
b) an Sa galaxy and an Sc galaxy
c) an SBa galaxy and an SBc galaxy
4. What group of galaxies does the Milky Way belong to?
5. How many galaxies are there estimated to be in the Universe?