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30 Cards in this Set
- Front
- Back
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As seen from a ship sailing due south, what happens to the position of Polaris on the sky?
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Its altitude decreases over time
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During what moon phase do we see, from the earth, half of the moon's day side and half of moon's night side?
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Either first quarter or last quarter
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The Nadir is the
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point directly beneath your feet
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When sunlight hits the ground at a glancing angle, why is the ground cooler?
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Heating is diluted over a larger area
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What are key elements of Kepler's first 2 laws of planetary motion
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-Planet's orbit is non circluar
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Aristoltle believed that..
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The earth did not move
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When the earth is on the straight line between the sun and another planet, we on earth see the other planet at..
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opposition
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As seen from north america, stars rise in the east and set in the west but planets may rise in either the east of west, depening on whether or not they are moving in retrograde motion..t or f?
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False
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on the equinox the sunset is...
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due west
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The stars in a particular constellation generally
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have no physical relationship to one another
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The astronomer Tycho brahe was known for his...
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acccurate observations of planet positions
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The full moon sets at..
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sunrise
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An important difference between copernicus and keplers ideas of planetary motion was that..
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kepler abandoned uniform circular motion
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What belief did both aristotle and copernicus share in common?
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motion in the heavens is uniform circular motion
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to the naked eye observer, planets appear to move with respect to the stars do not appear to move with respect to one another. Why?
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The planets are much closer to us than the stars
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Since the earth has a smaller orbit than jupter, it is impossible for the sun to get directly between the earth and jupiter?
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False
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Galileo was able to make many discoveries in astronomy because he was one of the 1st people to...
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use a telescope
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Kepler's 3rd law states that the square of the orbital period of a planet is proportional to...
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its orbital semimajor axis cubed
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The fact that we always see the same side of the moon from earth shows the moon does not rotate on its axis.. t or f?
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False
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Right ascension and declination in the celestial sphere correspond to..
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longitude and latitude on the earth
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The greek believed that earth was center, doesn't move, circles=perfect
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Aristotle
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This greek believed in Heliocentric model.. one of first
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Aristarchus
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He measured the size of earth by angles.
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Eratosthenes
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He discovered precession of equinoxes and star catalog
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Hipparchus
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He made a detailed model of how solar system works
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Ptolemy
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Revived Ptolemy system
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Copernicus
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He measured space between planets
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Tycho
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First to make disoveries with telescopes
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Galileo
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twice as far away
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Half the angle
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Twice as big
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Twice the angle
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