... To make it easier to "read" this celestial calendar, they grouped the brighter stars into readily recognizable shapes, the constellations. ... From Star Maps , [AS 289] a constellation slide set, available from the ASP . Our modern constellation system comes to us from the ancient Greeks. ... The ancient Greek tradition was to name stars by their position within a constellation. ... And it explains why we have a system of Greek constellations with Latin names containing stars with Arabic names. ...