1. Prof. Mel Ulmer DEPT OF PHYSICS & ASTRONOMY http://www.astro.edu/astro/faculty/ulmer/a01_fall2002.html

2. TA: David Lin d-lin@northwestern.edu Office hours: Thursdays 4:00-5:00 For help with Cepheid variable lab, Make an appointment No discussion sections this week of Sep. 23 Discussion sections: can come to more than one. Discussions sections (see syllabus also) all in Tech: Th., 2-3 (L170) 3-4 (LG66) U; Fri. 12-1 LG68, 1-150 M349 Lin

3. Sun, 8 light minutes

4. Mars, 12 light minutes

5. Jupiter, 40 lt min.

6. Pluto and Charon, 300 lt min

7. A star with planets forming; 50 lt year

8. Andromeda, a Galaxy like ours, 2 million lt yrs 100 billion Stars; 100,000 lt yrs across You are here!

9. Virgo cluster, 60 million lt yrs 1000 galaxies, 6 million lt yrs across

10. Coma Cluster, 360 million lt yrs, 1000 galaxies 6 million lt yrs across

11. A cluster 4 billion lt yrs 1000 galaxies, 6 million lt yrs across Hubble Deep Field, 10 billion lt yrs

12. Brick Wall, 15 billion lt yrs

13. BOOMERANG

14. Top Hat

15. DASI

16. COBE Planck

17. Maybe we already know! closed flat open Data Models

18. Maybe we already know, part I, extended Need to Assume ordinary matter, WIMPS, Dark energy To make curve Blocks= Data

19. Now we know, II

20. Maybe we already know, III SN Ia CMB clusters

21. Mauna Kea, On Big Island

22. Keck, 10 meters Person

23. Myall, 4 meters

27. The End