0° · Fusion
Conjunction in Astrology
A conjunction occurs when two bodies lie close together in zodiacal longitude. The exact angle is 0°. Astrologers allow a margin around exactness called an orb, and conventions for that margin vary.
Understand the idea
Conjunctions: two planetary themes in the same place
An aspect describes a relationship between positions in the chart. In a conjunction, the positions are close enough for astrologers to read their themes together. They occupy a similar direction around the zodiac, although the bodies can be far apart in space. The chart is measuring an angle from Earth's viewpoint, not a physical meeting between planets.
For a person, the symbolic idea is that two functions may be closely linked in experience. With Mercury and Venus, expressing an idea may be bound up with making it appealing or considerate. With Mars and Saturn, taking action may immediately bring standards or limits into view. The meaning comes from the particular pair; the same angle does not produce the same story for everyone.
Start by describing each planet separately, then ask what happens when both operate in the same setting. Note the house, sign and distance from exactness. A conjunction across a sign boundary still needs to be assessed by degree rather than dismissed because the signs differ. In a natal chart it is part of the birth pattern; in a transit it describes a changing contact with that pattern.
An illustrative example
A worked example: Mercury at 12° Virgo and Venus at 14° Virgo
The separation is 2°, making a conjunction under many common orb conventions. A symbolic reading might connect communication with taste or affection. Ask how those themes appear together, rather than predicting a particular talent.
This is a fictional example to explain the idea, not a prediction or a client case study.Put it into practice
A question to take with you
Find one conjunction and calculate the degree difference. Write a short description of each planet before trying to combine them.
Frequently asked questions
Can a conjunction cross a sign boundary?+
Yes. A planet at 29° Aries and one at 1° Taurus are 2° apart. Some traditions treat out-of-sign aspects differently, so state the method being used.
How do I calculate the orb of a conjunction across two zodiac signs?+
Convert both positions to longitude around the full 360° circle and take the shorter separation. A planet at 29° Aries and another at 1° Taurus are 2° apart, despite being in different signs.
Does having two planets in the same sign automatically create a conjunction?+
No. Planets at 2° and 27° of the same sign are 25° apart, which is not a close conjunction under common orb conventions. The degree distance matters, not just the shared sign name.
Why can a Venus-Jupiter conjunction read differently from a Mars-Saturn conjunction?+
The planets supply different themes before the angle is interpreted. Venus and Jupiter might raise questions about enjoyment and expansion; Mars and Saturn about action and limits. A conjunction combines themes without deciding whether they cooperate comfortably.
Is a conjunction to the Ascendant the same as a planet in the First House?+
No. The conjunction measures proximity to the Ascendant degree; the house placement locates a planet within a sector. A First House planet can be far from the angle, while a close conjunction may fall on either side of a cusp.
Reading notes
These guides use Western astrological symbolism, with tropical signs and a distinction between traditional rulerships and modern associations. Interpretations vary between schools. A calculated position is an astronomical measurement; its suggested personal meaning is an interpretation.
Further reading: Astrodienst on aspects and NASA's illustration of apparent retrograde motion. These explain different subjects: astrological angles and observed planetary motion.
Explore more aspects & transits
Try it with your chart
Find the placements you have been reading about.
Keep this guide nearby as you explore your own signs, houses and aspects.