The Earth's Orbit

E23ea2b82db9fc04e4c8161cdaf099a1?s=47 Robert Simpson
February 07, 2014

The Earth's Orbit

The Earth's path around the Sun - spinning on its axis all along - defines much about our world's climate, and our daily lives.

E23ea2b82db9fc04e4c8161cdaf099a1?s=128

Robert Simpson

February 07, 2014
Tweet

Transcript

  1. E A R T H ’ S O R B

    I T R O B E R T S I M P S O N
  2. O N T H E M O V E •

    100,000 kph (62,000 mph) • 365.24219 days • 940 million km (584 million miles)
  3. None
  4. T O P V I E W

  5. T O P V I E W

  6. N S S I D E V I E W

  7. S S S S N N N N W I

    N T E R S U M M E R S P R I N G A U T U M N S E A S O N S
  8. S S S S N N N N S O

    L S T I C E S O L S I T I C E E Q U I N O X E Q U I N O X
  9. None
  10. None
  11. None
  12. I M A G E : W I K I

    M E D I A C O M M O N S ( TA U ʻ O L U N G A )
  13. None
  14. I M A G E : W I K I

    M E D I A C O M M O N S ( TA U ʻ O L U N G A )
  15. None
  16. I M A G E : W I K I

    M E D I A C O M M O N S ( TA U ʻ O L U N G A )
  17. None
  18. I M A G E : W I K I

    M E D I A C O M M O N S ( YA N Z H A N G )
  19. T H E E A R T H S P

    I N S R O L L I N G , R O L L I N G , R O L L I N G
  20. T H E E A R T H S P

    I N S R O L L I N G , R O L L I N G , R O L L I N G
  21. None
  22. None
  23. None
  24. None
  25. None
  26. None
  27. None
  28. None
  29. None
  30. None
  31. None
  32. G O R E Y H A R B O

    U R , J E R S E Y; W I K I M E D I A C O M M O N S ( F O X Y O R A N G E )
  33. None
  34. None
  35. None
  36. None
  37. None
  38. None
  39. None
  40. None
  41. None
  42. None
  43. None
  44. None
  45. None
  46. None
  47. None
  48. C H E LYA B I N S K M

    E T E O R F E B R U A RY 2 0 1 3
  49. None
  50. None
  51. None
  52. None
  53. None
  54. None
  55. M I L A N K O V I T

    C H C Y C L E S • Cycle in perihelion (precession of our orbit)
  56. W I N T E R S U M M

    E R S P R I N G A U T U M N 2 3 , 0 0 0 Y E A R S
  57. W I N T E R S U M M

    E R S P R I N G A U T U M N 2 3 , 0 0 0 Y E A R S
  58. M I L A N K O V I T

    C H C Y C L E S • Cycle in perihelion (precession of our orbit) • Axial precession about our axis; like a wobbling spinning-top
  59. 4 1 , 0 0 0 Y E A R

    S
  60. 4 1 , 0 0 0 Y E A R

    S
  61. 4 1 , 0 0 0 Y E A R

    S
  62. M I L A N K O V I T

    C H C Y C L E S • Cycle in perihelion (precession of our orbit) • Axial precession about our axis; like a wobbling spinning-top • Shape of our orbit becomes more and less elliptical.
  63. W I N T E R S U M M

    E R S P R I N G A U T U M N 1 0 0 , 0 0 0 Y E A R S
  64. W I N T E R S U M M

    E R S P R I N G A U T U M N 1 0 0 , 0 0 0 Y E A R S
  65. M I L A N K O V I T

    C H C Y C L E S • Cycle in perihelion (precession of our orbit) • Axial precession about our axis; like a wobbling spinning-top • Shape of our orbit becomes more and less elliptical. ! • We are half way through these cycles
  66. None
  67. S U M M A RY • Earth is tilted

    as it spins, this creates our seasons • The Earth’s spin creates huge speed differentials, and the Coriolis effect • The Earth’s spin, and the gravity of the Moon and Sun contribute to tides • Our orbit takes us into the path of other orbiting bodies • Periodic changes in our spin, tilt and orbit affect the global temperature
  68. None
  69. None
  70. None