Aurora effect is known as the aurora borealis or the northern lights. The former term was coined by Galileo in 1619, from the Roman goddess of the dawn and the Greek name for the north wind. The southern counterpart, the aurora australis or the southern lights, has features almost identical to the aurora borealis and changes simultaneously with changes in the northern auroral zone. The Aurora Australis is visible from high southern latitudes in Antarctica, Chile, Argentina, New Zealand, and Australia. A geomagnetic storm causes the auroral ovals (north and south) to expand, and bring the aurora to lower latitudes. The
Corona Borealis of the Tuamotus named it "Na Kaua-ki-tokerau" and probably "Te Hetu". The constellation was likely called "Kaua-mea" in Hawaii, "Rangawhenua" in New Zealand, and "Te Wale-o-Awitu" in the Cook Islands atoll of Pukapuka. Its name in Tonga was uncertain; it was either called "Ao-o-Uvea" or "Kau-kupenga". In Australian Aboriginal astronomy, the constellation is called "womera" ("the boomerang") due to the shape of the stars. The Wailwun people of northwestern New South Wales saw Corona Borealis as "mullion wollai" "eagle's nest", with Altair and Vega—each called "mullion"—the pair of eagles accompanying it. The Wardaman people of northern Australia held the constellation