The word ingress comes from the Latin ingressus, to ‚go in‘ or ‚enter‘. The chart of the Aries ingress is drawn for the moment that the Sun enters the very first minute of that sign, which is the beginning of a new cycle for the Sun. A general rule in traditional astrology is that if the ascendant of the ingress chart is in a moveable (cardinal) sign the chart remains valid for three months only, and it is necessary to draw further charts for the Sun’s entry into Cancer, Libra and Capricorn. If the ascendant is in a common (mutable) sign the chart remains valid for six months, and the Sun’s ingress into Libra should be used for the remaining half of the year. If the ascendant is in a fixed sign, however, the chart remains valid for the whole year. – http://www.skyscript.co.uk/ingresses.html –
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