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History of Astronomy

Name____________________________________

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Across
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Danish aristocrat who meticulously observed the skies; hired Kepler
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pseudoscience that deals with the supposed influences on human destiny of the configurations and locations in the sky of the Sun, Moon, and planets
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Studied the surface of the moon; discovered four moons of Jupiter
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circular orbit of a body in the Ptolemaic system (center of which revolves around another circle)
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Apparent motion of planets to move in a backward fashion
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Sun at the center
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Which of Kepler's Laws describes equal areas for equal time of a planetary orbit around the sun
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__________ sphere is the apparent sphere of the sky centered on the observer
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the apparent displacement of a nearby star that results from the motion of Earth around the Sun
Down
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Druid structure that used the setting and rising sun to tell time
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Used universal laws of gravity to support Kepler
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First Greek to profess a heliocentric universe
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Culture that first made the shift from faith-based to science in astronomy
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centered on Earth
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Period of time it takes Earth to revolve around the sun
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Influential mathematician/astronomer who had three laws of planetary motion