Observing the Sky: The Birth of Astronomy

A self-checking practice quiz on observing the sky and the birth of astronomy: the celestial sphere, constellations, the daily motion of the sky, ancient Greek astronomy, Eratosthenes, Ptolemy, Copernicus, and Galileo. Every question is multiple choice and shown one at a time, and the set is drawn fresh each time you take it. At the end you receive a report showing how many you answered correctly.