The relationships of the positions of the planets in an astrological chart in comparison to their position in another chart. Usually, this compares the positions of the planets at a specific time (such as a birthday or at the time for making a decision) with the positions of a natal or birth horoscope. The transits can also be tracked on a daily basis. This information can be used by skilled astrologers to provide information on current ups and downs in a person’s life.