How many centimeters are there in one kilometer? 1. 100 2. 1,000 3. 10,000 4. 100,000 5. 1 10 6 QUESTION.
Galaxies in the Universe Chapter 4 Our backyard: the Local Group Yin Jun 09/20/06.
Lecture Outline Chapter 16: A Universe of Galaxies © 2015 Pearson Education, Inc.
Galaxies What is a galaxy? How many stars are there in an average galaxy? About how many galaxies are there in the universe? What is the name of our galaxy?
Galaxies and the Foundation of Modern Cosmology. what are the three major types of galaxies? How are galaxies grouped together?
Welcome to A105 Stars and Galaxies Instructor: Caty Pilachowski Assoc. Instructor: Tara Angle Today’s APOD APOD Read units 1, 2, 3, 4.1 Essential Facts.
Welcome to A105 Stars and Galaxies
SC Vauclair et al, astro-ph/0311381
Ten things you should know about the Milky Way Galaxy Ten things you should know about the Milky Way Galaxy.
THE DARK UNIVERSE The Copernican Revolution continues… Caty Pilachowski, Mini-University 2010.
