One of the four elements considered in Astrological correspondence.
Air is associated with mental processes and communication.
Its season is autumn. The cusp, the beginning degree, based on the time of day and place of birth of the subject, of the first house, and the first house itself. The First house determines a person's public image, the face we show to the world, and how the world sees us. One of the primary points to consider in a chart. Star formations were originally associated with the twelve signs of the zodiac because their positions coincided.