The Sabian symbols give each of the 360 zodiac degrees a symbolic image. They work less like literal descriptions and more like Rorschach images — open enough to carry multiple meanings, specific enough to feel particular to a chart.
Dane Rudhyar expanded the original Jones symbols in the 1970s, adding keynotes and cyclic context. The Astrolium calculator uses the original 1925 symbol text alongside Rudhyar's keynote where relevant.
Astrolium's Sabian symbol calculator returns the symbolic image for every degree your natal planets and angles occupy, drawing on the 360-image set channelled by Elsie Wheeler in 1925 and structured by Marc Edmund Jones. The tool accepts birth date, time, and place, then identifies the symbols for the Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, the Ascendant, and the Midheaven, applying the standard Jones convention that rounds upward (a planet at 14°12' uses the 15° symbol). Output pairs each symbol with Dane Rudhyar's keynote interpretation where relevant. Practitioners use it for chart meditation, lunation work, and eclipse delineation, since transiting new moons and eclipses on a natal Sabian degree activate that image with notable specificity. The Sun symbol carries the most personal resonance. Calculations use Swiss Ephemeris with sub-arcsecond accuracy. Free, no account required.
How to read your Sabian symbols
Start with the Sun symbol — it tends to carry the most personal resonance. If it doesn't immediately mean anything, sit with it. Sabian symbols often require time to unfold. Return to them after a significant event and they frequently appear more apt.
The Moon symbol reveals the emotional or instinctual layer. The Ascendant symbol often describes something others see in you before you see it in yourself.
Sabian symbols in practice
Many practitioners use Sabian symbols for new and full moons, solar returns, and eclipse points rather than natal work. When a transiting eclipse or lunation falls on one of your natal degrees, that degree's Sabian symbol becomes especially active.
The Astrolium calculator gives you your natal symbols as a permanent reference. Cross-reference them when major transits activate those degrees.