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

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

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

$600 Full moon a lunar eclipse occurs only during a

$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?

$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?

$ degrees What is the tilt of the earth on its axis?

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

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

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

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

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

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

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

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

$ Into how many constellations is the celestial sphere divided by the IAU?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

$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