Explore an interactive map of the constellations, based on your location. Click on individual starts to learn more about them, including their distance to Earth, luminosity, and which constellations they form.
Learn the major summer constellations and how to use just a few constellation to find others.
Perseus and Caput Medusæ, plate 6 in Urania's Mirror, a set of celestial cards accompanied by A familiar treatise on astronomy ...by Jehoshaphat Aspin. London : 1825 (etched by Sidney Hall).