1. Chatfield Senior High Department of Physics
Apparent Motion of Sun
Chatfield Senior High
Department of Physics

2. The “ancients” (Constellation Names)

3. Constellation Map Jan 2012

4. Reason for the Seasons
23 ½ o Tilt of the Earth

5. Sun’s plot for a particular latitude

6. Sun’s Apparent Motion

7. The Ecliptic

8. Sunrise and Sunset for 35o N latitude

9. Variation of Length of Day

10. Comet (Hale-Bopp)(1997)

11. Comet Hale Bopp (1997)

12. Voyager I & II (1979)

13. Jupiter (1979)

14. Saturn (1980)

15. Uranus (1986)

16. Neptune (1989)

17. Viking (Venus) (1973)

18. Why Mars? It is similar to size and shape of the Earth
It has water and therefore (possibly micro-organisms)
It is relatively temperate 10 o C on the
equator

19. Mars or Utah? (1)

20. Mars or Utah? (2)

21. Mars or Utah? (3)

22. Mars or Utah? (4)

23. Mars or Utah? (5)

24. Mercury or the Moon?

25. Mercury or the Moon?

26. Mercury or the Moon?

27. How difficult is it to get to Mars?
Answer: Very….Hohmann transfer…
Transfer time: 6-8 months

28. Hohman transfer?

29. Mars Pathfinder (1998)

30. Mars Spirit and Opportunity (2004-current)

31. Mars Spirit and Opportunity
Spirit landed in Gusev Crater (thought to be an ancient lakebed) and headed for Columbia Hills
Opportunity landed in Endurance Crater and experienced rock layering and blueberries
Manned mission in 2027?