Stellium
A stellium is a cluster of three or more planets in one sign or one house, which concentrates a chart's weight in a single area.
Whatever the sign or house means, a stellium makes it loud. Our reports treat three bodies as the threshold and read the group as one theme rather than as separate placements, which is also how they are printed.
The house tells you which part of life carries the weight; the sign tells you the style in which it is carried.
Frequently asked
How many planets make a stellium?
Three is the common threshold, and the more bodies involved the more the rest of the chart organises itself around them.
Is a stellium good or bad?
Neither. It is a concentration, which is an advantage where focus helps and a difficulty where balance would.