4. Phases of the Moon Reasons for the Seasons Constell- ations Eclipses Celestial Sphere Using terms $ 200 $ 200$200 $ 200 $ 200 $400 $ 400$400 $ 400$400 $600 $ 600$600 $ 600 $ 600 $ 600 $800 $ 800$800 $ 800 $ 800 $ 800 $ 1000$1000 $ 1000 $ 1000 $ 1000 $ 1000

5. $200 Full moon Which phase appears as the moon completely lit overhead at midnight

6. $400 6 pm If the moon rose tonight at 5 pm, about what time will it rise tomorrow

7. $600 Full moon a lunar eclipse occurs only during a

8. $800 The Earth is also revolving around the Sun, so the Moon must catch up Why is there a difference between the sidereal and lunar months?

9. $1000 The phase will be full because it is rising opposite the sun. If the moon is directly opposite of the sun in the sky it will be a full moon If the moon rises at sunset, what phase will it be in? Why?

10. $200 23.5 degrees What is the tilt of the earth on its axis?

11. $400 year The time it takes for Earth to complete an orbit around the Sun is called.

12. $600 equinoxes The places where the Sun crosses the equator are called the

13. $800 Summer solstice The sun is high overhead at 23.5 degrees north.

14. $1000 Check your answer with me Draw the reasons for the seasons showing equinoxes and solstices

15. $200 constellations Groups of stars making an apparent pattern in the celestial sphere are called

16. $400 Brightest star In general, what is true of the alpha star in a constellation

17. $600 About 3000 About how many stars are visible on a clear, dark night with the naked eye alone?

18. $800 Taurus If the sun rises in the constellation of Taurus which constellation will it set in?

19. $1000 88 Into how many constellations is the celestial sphere divided by the IAU?

20. $200 New moon. A solar eclipse can only happen during a

21. $400 Total eclipse of the sun If you are in the Moon’s umbral shadow, then you will witness

22. $600 New moon on ecliptic at apogee What conditions are necessary for an annular solar eclipse?

23. $800 New moon on the ecliptic at perigee What conditions are necessary for a total solar eclipse?

24. $1000 Show your visual representation Draw a solar eclipse showing the penumbra and umbra of the moon’s shadow on earth

25. $200 North pole Where on Earth would you be if Polaris was at your zenith?

26. $400 What celestial line is a product of the Earth’s orbit around the Sun? ecliptic

27. $600 23 hours and 56 minutes You note that a particular star is directly overhead. It will be directly overhead again in

28. $800 0 hours to 23 hours What is the range of values for Right Ascension

29. $1000 If Seattle is at 47 degrees north latitude on earth where is Polaris in the sky 47 degrees

30. $200 Northstar Of all the visible objects in the sky, which appears to move the least?

31. $400 Shorter distance Is a star with a large parallax and great distance or short distance from earth

32. $600 Precession The fact that Polaris will not always be the North Star is due to what Earth motion?

33. $800 26,000 years How long is the precession cycle

34. $1000 He realized that the sun was directly overhead in one city and at a slight angle in another at the same time and therefore realized the Earth was curved. He realized the distance between the cities was a 7 degree difference or about 1/50 th of the earth’s total conference Explain how Eratosthenes measure the circumference of our planet