... In this chapter, we practice reading maps, first of our nearby surroundings, then of our town, and then of the Earth and stars. ... What makes a good map? ... Close one eye. ... Students may make a number of these maps of the same area of the sky at intervals over a period of months in order to record the movement of the stars. ... The complex astrolabe will help students to find constellations and make sky maps with the important stars in their correct positions as viewed from a particular latitude...