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Apparent Motion of Sun

Apparent Motion of Sun. Chatfield Senior High Department of Physics. The “ancients” (Constellation Names). Constellation Map Jan 2012. Reason for the Seasons. 23 ½ o Tilt of the Earth. Sun’s plot for a particular latitude. Sun’s Apparent Motion. The Ecliptic.

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Apparent Motion of Sun

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  1. 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?

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