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

2. Hubble sequence

3. M 51 the Whirlpool Galaxy HII regions

5. William Herschel Telescope

6. William Herschel Telescope

8. PX269 Galaxies

10. Part 3: Normal galaxies 3.2 Distances

12. PX269 Galaxies Main sequence fitting

13. PX269 Galaxies Cepheid variables: period-luminosity relation

14. Large Magellanic Cloud (LMC)

15. LMCSMC

16. SN1987A in LMC

17. Ring around SN1987A with HST

18. SN1994d in NGC4526 Hubble Space Telescope

20. PX269 Galaxies Tully Fisher relations Rubin et al 1986

21. PX269 Galaxies

22. Tully-Fisher relation

23. PX269 Galaxies Hubble relation

26. PX269 Galaxies

27. Distance ladder

28. PX269 Galaxies Part 3: Normal galaxies 3.3 Elliptical galaxies

29. M87 an elliptical galaxy CFHT

30. PX269 Galaxies NGC 2768 an elliptical galaxy

31. PX269 Galaxies Leo I, dwarf elliptical galaxy SDSS

32. NGC 4267, normal elliptical galaxy SDSS

33. PX269 Galaxies Compactness of elliptical galaxies

34. PX269 Galaxies

35. M49 Optical X-rays Gas in elliptical galaxies