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The Motion of the Sun

The Motion of the Sun. http://www.astronomy.com/news/2014/01/black-hole-powers-cosmic-flashlight-illuminating-the-cosmic- web. Draw the Earth’s Revolution. Day/night length Equinox and solstice Seasons . Highest and Lowest Declination. Annual Motion of the Sun. The Declination of the Sun…

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The Motion of the Sun

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  1. The Motion of the Sun

  2. http://www.astronomy.com/news/2014/01/black-hole-powers-cosmic-flashlight-illuminating-the-cosmic-webhttp://www.astronomy.com/news/2014/01/black-hole-powers-cosmic-flashlight-illuminating-the-cosmic-web

  3. Draw the Earth’s Revolution • Day/night length • Equinox and solstice • Seasons

  4. Highest and Lowest Declination

  5. Annual Motion of the Sun • The Declination of the Sun… • varies between –23º and +23º

  6. Where is the sun… • During the Equinox? • During the Summer solstice? • During the Winter solstice?

  7. Life at the Poles • North Pole- 6 months of daylight beginning at the spring (vernal) equinox and ending at the autumnal equinox • The other 6 months of the year it is night • South Pole- 6 months of daylight beginning at the autumnal equinox and ending in the vernal equinox • The other 6 months of the year it is night

  8. What shape is the Earths Revolution around the sun?

  9. Misconception • Earth’s seasons are caused by moving closer and further from the sun…false

  10. Earth’s Distance from the Sun • Perihelion (closest to the Sun) is around January 3 when Earth is about 91,405,436 miles from the Sun. • Aphelion (farthest from the Sun) is around July 4 when Earth is about 94,511,989 miles from the Sun.

  11. Weather • Weather in the southern hemisphere is more constant than the northern. Reason?

  12. Drawing the Suns Path • Recap • Draw our bubble with the equator, zenith, and celestial north pole • Where will the sun be located on the two solstices and the two equinox

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