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History of Astronomy

Name____________________________________

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