A Planetary Grand Cross is an astrological event that occurs when four or more planets are aligned in a cross-like formation. This alignment creates a powerful energy that can have a profound effect on the lives of those affected by it. During a Planetary Grand Cross, the planets involved are said
From Wikipedia
In astrology, a Grand Cross is said to occur when four planets are all separated from each other by Square aspects. A Grand Cross can also be viewed as two oppositions separated from each other by a square. In a Grand Cross, there is one planet in each astrological element but all the planets are in signs of the same modality or quality.