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Constellations

Constellations. Objectives for this unit:. a. Locate and identify stars that are grouped in patterns in the night sky. b. Identify ways people have historically grouped stars in the night sky. c. Recognize that stars in a constellation are not all the same distance from Earth. .

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Constellations

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  1. Constellations

  2. Objectives for this unit:

  3. a. Locate and identify stars that are grouped in patterns in the night sky.

  4. b. Identify ways people have historically grouped stars in the night sky.

  5. c. Recognize that stars in a constellation are not all the same distance from Earth.

  6. d. Relate the seasonal change in the appearance of the night sky to Earth’s position.

  7. e. Describe ways that familiar groups of stars may be used for navigation and calendars.

  8. What is a constellation? A constellation is an imaginary picture made using a group of stars forming a fixed pattern in the sky.

  9. Every culture has created constellations. There were many reasons why they were created.

  10. Calendars Knowing when certain constellations rise is very helpful if you are a farmer.

  11. Religion • Constellations represented important religious figures. • People were constantly reminded of their religion.

  12. Navigation Know where you are as you travel. Source: NOAA

  13. Important Groups of Constellations The twelve (thirteen, really!) constellations of the Zodiac*. *Zodiac – Latin for “circle of animals.”

  14. The Sun, Moon, and planets appear to move through the Zodiac. Source: MSN Encarta

  15. Circumpolar Constellations Constellations that rotate around the North Pole and are visible all year. Source: Windows on the Universe

  16. Other constellations you should know Orion Found in the high southern winter sky.

  17. Killed by a scorpion and placed in the sky. Source: Dr. Islam’s Constellation page http://www2.potsdam.edu/islamma/Phys335Constellations.htm

  18. Boötes Found in the northern sky during spring.

  19. The herdsman is watching the bears. Source: Dr. Islam’s Constellation page http://www2.potsdam.edu/islamma/Phys335Constellations.htm

  20. Use the Big Dipper’s handle to find Boötes. (Make an arc to Arcturus.)

  21. Scorpius Found in the southern sky in summer.

  22. Killed Orion. When Orion is seen, Scorpius is nowhere to be found! Source: Dr. Islam’s Constellation page http://www2.potsdam.edu/islamma/Phys335Constellations.htm

  23. When you look at a constellation, all the stars appear to be the same distance from Earth.

  24. Look at Orion: ` Source: NASA StarChild http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question9.html

  25. Why do we see different constellations during the evening? Earth rotates on its axis.

  26. Why do we see different constellations through the year? The Earth revolves around the Sun.

  27. Constellations used for navigation. The North Star helps find direction. Runaway slaves used the Big Dipper (Drinking Gourd).

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