Definition
Superior and inferior are relational terms used to classify planets or describe planetary positions. In traditional geocentric astrology, the superior planets are Mars, Jupiter, and Saturn, whose spheres were placed beyond the Sun. Mercury and Venus are commonly called inferior planets because their orbits lie within Earth’s orbit and they always remain relatively close to the Sun in the zodiac. Some older texts use “inferior” more broadly for bodies beneath the Sun’s sphere, including the Moon, so context matters.
Astrological Meaning
The distinction helps explain differences in planetary motion, visibility, and cycles. Superior planets can form every major angular relationship with the Sun, including oppositions, while Mercury and Venus cannot. An inferior conjunction occurs when Mercury or Venus passes between Earth and the Sun; a superior conjunction occurs when the planet is aligned with the Sun on the far side. Traditional interpretation may also associate superior planets with slower, more externalized or socially consequential processes, while inferior planets are often linked with quicker, more personal functions.
Why It Matters
Recognizing these categories clarifies classical texts and prevents confusion when interpreting conjunctions, retrograde cycles, and solar relationships in a natal chart. The terms describe astronomical order and technique rather than a hierarchy of better and worse. Their interpretive value depends on the planet, its condition, house, sign, aspects, and the astrological tradition being used.
Related Encyclopedia Entries
- Traditional Astrology
- Astrological Terminology
- Natal Chart
- Planetary Conjunction
- Retrograde Motion
