How many planets make a stellium?

Most astrologers say three or more planets in the same sign or house. Some require four, and some include the Ascendant, Midheaven or lunar nodes. There is no single agreed rule.

Do the planets in a stellium have to be conjunct?

Not always. Planets in the same sign can still be far apart in degrees. Tight conjunctions, within about 8 to 10 degrees, make a stronger stellium.

Is a stellium in a sign or a house more important?

Both count. A sign stellium describes a style, a house stellium describes an area of life. Planets that are in both the same sign and house are the strongest case.

Is a stellium a strength or a problem?

Neither by itself. It gives a strong emphasis, which can bring skill and depth, and it can also bring imbalance if other areas of life are neglected.

Stellium in astrology: meaning and how to find yours

What counts as a stellium? A stellium is a group of three or more planets in the same sign or the same house of a birth chart. It pours energy into one theme, so that part of life tends to dominate the person’s character. Some astrologers require four planets, and some also count points like the Ascendant.

How do I know if I have a stellium?

Count the planets in each sign and each house of your chart. Three or more in one place make a stellium. The closer the planets sit in degrees, the more they act as a unit. Planets more than 8 to 10 degrees apart get called a loose stellium.

House stelliums need an accurate birth time, because houses depend on it. A sign stellium does not. The chart shape calculator lists stelliums along with the overall shape, and the element balance calculator shows how your planets spread across the elements.

Type	What it looks like	Core meaning
Sign stellium	Three or more planets in one sign	A strong style or manner
House stellium	Three or more planets in one house	A strong area of life
Tight stellium	Planets within a few degrees	Acts as a single unit
Loose stellium	Planets wider apart	Shared theme with more variety

What does a stellium mean?

A stellium means emphasis. Everything the planets stand for gets funneled through the sign or house they share. A stellium in the 10th house puts career and public life at the center, so the person may answer work email on vacation. A stellium in Scorpio lends that sign’s intensity to several parts of the personality at once.

The planets involved matter as well. A stellium of personal planets, such as the Sun, Mercury and Venus, feels close and immediate. A stellium with slow outer planets reflects a whole generation. It reads as less individual unless inner planets join it.

Which planets are in the stellium?

Look at who is in the group. With the Sun or Moon inside, the stellium sits close to the core of identity. A group of Mercury, Venus and Mars describes a style of thinking, loving and acting.

Then ask how comfortable each planet is in that sign. Planets in one stellium can differ a lot in condition, so the planet strength calculator helps here. A stellium of strong planets feels like a resource. One with afflicted planets can feel like too much at once.

Stellium strengths and drawbacks

A stellium gives depth, focus and expertise in its area. Its drawbacks are a one-sided view and trouble seeing the other parts of life. Crowded planets also overshadow one another, so one planet’s needs can push the rest aside.

Ask which planet in the group leads, and what the group needs as a whole. Then look at what is missing elsewhere in the chart and whether you can give it some time each week.

How does a stellium relate to chart shapes?

A stellium is a local cluster, while a chart shape describes the whole wheel. A bundle chart nearly always contains one, and a splay has a stellium as its largest cluster in many cases. A bowl may or may not.

How do I use a stellium in a full reading?

Treat it as the chart’s headline. Then see how it works with aspect patterns like a T-square or grand trine, and compare it with your core type. The patterns section shows how these pieces fit together.