The 88 Constellations of the Night Sky
A constellation is a grouping of stars that represents one of the 88 divisions of the celestial sphere as defined by the International Astronomical Union. Many constellations are derived from old traditional asterisms, which are star patterns within a constellation. An example: the Big Dipper is an asterism inside of the Ursa Major constellation.
Seasons listed are for mid-northern latitudes. For southern latitudes, flip the season listed. For example, if a constellation is listed as best viewed in the summer, in the southern hemisphere the constellation would be best viewed in the winter and would be upside-down. Circumpolar constellations are visible year-round in their hemisphere.
Constellations shown with a symbol are the Zodiac constellations.