In Mesopotamian mythology, Gugalanna (lit. "The Great Bull of Heaven" < Sumerian gu "bull", gal "great", an "heaven", -a "of") was a Sumerian deity as well as a constellation known today as Taurus, one of the twelve signs of the Zodiac. It was to share the sorrow with her sister that Inanna later descends to the Underworld. In the time in which this myth was composed, the New Year Festival, or Akitu, at the Spring Equinox, due to the Precession of the Equinoxes did not occur in Aries, but in Taurus. At this time of the year, Taurus would have disappeared as it was obscured by the sun.