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One chart. Several distinct questions.

Stellium: what counts,
and what it means.

VERDICT

A stellium groups three or more planets in one sign or house, though some rules require four. Name the planets and the rule first. Confirm house placements before interpreting them; a concentrated chart area does not dictate your personality.

Published October 1, 2026 · 7 minute guide · 24 focused interpretations

Do I have a stellium, or just several nearby symbols?

Count the named bodies before counting the symbols. The Ascendant, Midheaven and lunar nodes are chart points, not additional planets in this tool's default list. Sun and Moon are included as luminaries. Then make two lists: one grouped by sign and another by house. A group may qualify in one list and fail in the other.

Proximity is a third question. Sharing a 30-degree sign does not establish that every member is conjunct every other member. Save the degree positions rather than turning a sign count into an aspect claim.

The useful record

Rule + included bodies + sign members + house system + time confidence. Keep those five pieces with the result so another reader can reproduce it.

Three different questions often share one label

ApproachQuestion it answersWhat it does not establish
3+ bodies in a sign or houseWhere is the minimum three-body concentration?That a reader using a four-body threshold will agree.
4+ bodies in a sign or houseWhich groups survive a stricter count?That a three-body grouping has no interpretive relevance.
Conjunction-based groupingWhich planets form close angular contacts under a chosen orb?That same-sign membership alone proves a conjunction chain.

These are comparison lenses, not three universally standardized schools. Tarot.com's definition discussion describes the three-versus-four disagreement. Our calculator reports sign/house counts and degree span; it does not certify an orb-based stellium.

One invented chart, three checks you can reproduce

Suppose Sun is at 2° Capricorn, Mercury at 14° Capricorn and Venus at 28° Capricorn. Put Sun and Mercury in the 11th house and Venus in the 12th. These are deliberately fictional placements, not a celebrity chart or a historical sky claim.

Sign count: three

Capricorn qualifies with a three-body threshold. Raise the threshold to four and that same group no longer qualifies. The data did not change; the rule did.

House count: two plus one

The three Capricorn bodies do not establish a house stellium. If the birth time is unreliable, even that two-plus-one allocation must remain unconfirmed.

Degree span: 26°

The end members are 26 degrees apart. Their common sign does not turn that separation into a close conjunction. An aspect reading needs its own stated orb.

This worked audit is the original contribution of this guide: it isolates three decisions that a single “yes” can hide. It can be checked by hand or reconstructed with manual entries in the calculator.

Start with the question you actually have

The 12 sign guides

A sign describes an interpretive style shared by the bodies. Start with their actual functions; do not multiply a Sun-sign stereotype by the number of planets.

The 12 house guides

A house organizes a life area. Use these readings only after confirming the birth time and chosen house system; Equal, Whole Sign and Placidus placements can differ.

Reject “the biggest cluster explains everything”

A concentration identifies repetition in the chart, not the cause of every behavior. Mercury asks about processing and communication; Venus about attraction and values; Mars about action. Combining those functions into one adjective erases the very differences that make the cluster worth reading.

Try a practical rebuttal: name one way each member could pull against the others. A desire for approval and a drive for immediate action can occupy the same sign without becoming the same need. Then consider aspects and the rest of the chart rather than treating the cluster as a verdict on your life.

Before you leave with a label

Can I have more than one stellium?

Under a count-based rule, yes. Separate groups can meet the threshold. A sign group and a house group may also contain the same bodies, so do not automatically count them as two independent concentrations.

Does no stellium mean an unremarkable chart?

No. A count below a chosen threshold says nothing about a person's importance, ability or worth. It only answers that counting question.

What if I do not know my birth time?

Do not assign houses from a guessed hour. Some sign groups may survive an interval audit, but that needs more than a noon snapshot. See the unknown-birth-time method.

Worked chart questions

Follow the evidence through one specific calculation.

Understand your chart points