1. Renaissance Astronomy
Chapter 4

2. The Universe as described in Dante’s Divine Comedy
Fig. 4.1
The Universe as described in Dante’s Divine Comedy

3. Timeline and Notable People and Events (Left)
Fig. 4.2
Timeline and Notable People and Events (Left)
And Four Most Prominent Renaissance Astronomers
(Copernicus, Tycho, Kepler, Galileo)

4. Copernicus

5. Heliocentric Model (Copernicus)
Fig. 4.3
Heliocentric Model (Copernicus)

6. Retrograde motion according to the heliocentric model
Fig. 4.4
Retrograde motion according to the heliocentric model

7. Fig. 4.5

8. Fig. 4.6

9. Fig. 4.6
Greatest Elongation

10. Mars’ epicycle in Copernicus’ model
Fig. 4.7
Mars’ epicycle in Copernicus’ model

11. Fig. 4.8

12. Tycho Brahe

13. Fig. 4.9
Tycho Brahe

14. Fig. 4.10
Parallax of a Star
Distance = 1/parallax

15. Kepler

16. Fig. 4.12
Ellipses

17. Kepler’s first law: Planets move around the Sun in ellipses
Fig. 4.13
Kepler’s first law: Planets move around the Sun in ellipses

18. Kepler’s second law: Planets sweeps out equal areas at equal times
Fig. 4.14
Kepler’s second law: Planets sweeps out equal areas at equal times

19. Kepler’s 3rd law
Kepler’s third law

20. Galileo

21. Fig. 4.15
Galileo’s Drawings
of the moon

22. Fig. 4.16

23. Fig. 4.17