Waterproof Tear-Resistant Topographic Maps. The Night Sky – Stargazer Map Pack contains two maps, the Northern Hemisphere is centered on Polaris, the North Star, the Southern Hemisphere is centered near Crux, the Southern Cross. The constellations and brighter stars are labeled with their latin names. The map also includes a table of star magnitude or brightness. As the Earth moves in its orbit around the Sun the constellations in the sky change. The Night Sky maps include four seasonal charts that are specific for each season; spring, summer, autumn, and winter.