Once you're able to identify a few constellations though ... shift with the seasons, and a map for the Southern Hemisphere won’t help much if you’re in the Northern Hemisphere.

Dutch mapmaker Petrus Plancius instructs students in the science of navigation in this ... He later assembled three additional northern hemisphere constellations from fainter stars adjacent ...

This asterism appears on summer evenings in the Northern Hemisphere. The Teapot: A teapot-shaped asterism within the constellation Sagittarius. The “W” of Cassiopeia: An easy-to-spot letter ...