Motion Depends on Declination

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Motion Depends on Declination
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The Sky at the North Pole

• At the North Pole, the North Celestial Pole is at
  the zenith
• Stars never rise or set
• Planets, Moon, and Sun do rise and setWhy?

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Stars Rise and Set at the Equator
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The Sky at Our Latitude
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The Sky at Southern Latitudes
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Sun Changes Declination
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The Arctic and Tropical Regions

• How are the arctic and tropical regions defined?
• Can you answer this without looking at your
  books?
• Have you ever been to these regions?

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Back to the North Pole
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Back to the Equator
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Cold Arctic Regions
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Tropical Heat

• In the Tropics, Sun is always close to zenith
• In the Tropics, the sun reaches the Zenith at
  some point in the year
• Lots of heating due to sunlight

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Land of the Midnight Sun
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The Sky for Navigation