After studying this course, you should be able to:
describe the characteristics of light emitted by stars, and hence the information of cosmological interest that can be deduced from it
distinguish between true and false statements relevant to the distribution and motion of stars within galaxies, and of galaxies within clusters and superclusters
outline the methods used for estimating the distances to stars and to galaxies
explain and apply Hubble’s law
distinguish between various sources of redshift and estimate their relative importance in a given situation.