1. Part 3: Normal galaxies 3.1 Rotation curves
PX269 Galaxies
Part 3: Normal galaxies
3.1 Rotation curves

2. Hubble sequence

3. M 51 the Whirlpool Galaxy
Line emission from HII regions

5. William Herschel Telescope

6. William
Herschel
Telescope

7. Measuring the rotation curves of spiral galaxies using long-slit spectroscopy

8. The flat rotation curves of spiral galaxies

9. More rotation curves

10. Part 3: Normal galaxies 3.2 Distances

12. Main sequence fitting

13. Cepheid variables: period-luminosity relation

14. Large Magellanic Cloud (LMC)

15. SMC
LMC

16. SN1987A in LMC

17. Ring around SN1987A with HST

18. SN1994d in NGC4526
Hubble Space Telescope

21. Hubble relation

23. Distance ladder

24. Part 3: Normal galaxies 3.3 Elliptical galaxies

25. M87
an elliptical galaxy
CFHT

26. NGC 2768
an elliptical galaxy

27. Leo I, dwarf elliptical galaxy
SDSS

28. NGC 4267, normal elliptical galaxy
SDSS

29. Compactness of elliptical galaxies

30. Gas in elliptical galaxies
X-rays
Optical
M49