What the two signs have in common
Facts about the two signs as traditional astrology lists them. The reading below is built from these rows.
| Fact | Aries | Leo |
|---|---|---|
| Aspect between the signs | Trine, 120° | |
| Element | Fire | Fire |
| Quality the elements share | hot · dry | |
| Modality | Cardinal | Fixed |
| Traditional ruler | Mars | Sun |
| Modern ruler | Mars | Sun |
| How the rulers relate | A light and a personal planet | |
The aspect between the signs
A trine joins two signs of the same element in different modalities. It is the classical aspect of ease: a shared temperament with a different pace of acting on it.
Elements and modalities
Two fire signs share both qualities, hot and dry. They are quick to start, quick to warm up and quick to flare, and the tradition reads the pairing as energetic and impatient.
One sign starts and the other sustains: a cardinal sign opens, a fixed sign holds.
The rulers
One ruler is a light (Mars or Sun) and the other a personal planet. The first stands for core identity or need, the second for a way of acting, relating or thinking.
Mars stands for: drive, anger, initiative, courage. Sun stands for: identity, vitality, purpose, will.
The two signs together
Aries tends to bring initiative: it says what it wants and starts before it is certain. It tends to need room to act without explaining each step, and a direct answer.
Leo tends to bring warmth: generosity, loyalty and a flair for making things an occasion. It tends to need appreciation, said aloud and meant.
Both are warm and proud of it. They tend to admire the same boldness in each other, and to compete for the same place at the front.
What tends to come easily
- A shared way of feeling and reacting, with little to translate.
- Energy and enthusiasm match.
- Starting and keeping are both covered.
- One sets the tone and the other supplies the method.
What tends to cost something
- Comfort can slide into complacency, since nothing demands change.
- Both flare, and neither is the one who cools things down.
- The starter can feel held back, and the sustainer can feel pushed.
- Core needs and daily habits can pull in different directions.
What two Sun signs cannot say
Two Sun signs are a small part of two charts. The Moon, Venus, Mars, the rising sign and the houses of each person shape how a relationship goes, and so do age, circumstance and choice.
The aspect here is counted between signs, not between degrees. Two people born at the start and at the end of the same sign stand differently from two born at the same degree, and this page cannot tell which applies.
To compare two actual people, the synastry tool takes both birth dates and shows the aspects between the planets.