Chart Shape
Definition
Chart shape is the overall pattern the natal planets make as they spread around the zodiac wheel. In the seven-shape typology popularized by Marc Edmund Jones, the patterns are: Bundle, all the planets packed within 120°; Bowl, all within 180°; Bucket, a Bowl with one lone planet — the "handle" — opposite it; Locomotive, planets spanning 240° with one empty trine of sky; Splash, planets spread broadly across most of the signs; Splay, planets clustered near the trine angles; and Seesaw, two groupings facing each other.
In Tradition
Modern Western chart-pattern analysis uses the overall shape as a quick first impression of how someone's energies tend to gather or scatter. The framework is largely Marc Edmund Jones's own synthesis from 1941, refined by Dane Rudhyar within humanistic astrology and discussed at length by Robert Hand in *Horoscope Symbols*. Astrologers usually treat shape as one factor among many — read alongside hemisphere emphasis, element and modality balance, and aspect patterns — rather than as something that decides an outcome.
In Practice
The astrologer measures the span of sky the planets occupy, finds the widest gap between two neighbouring bodies, and matches the resulting spread against the seven shape templates. A Bundle or a Bowl, with every planet inside one hemisphere, calls for close attention to the outermost planets and to the empty half of the chart. In a Bucket, the handle planet gets extra weight as the focal release point. A Locomotive highlights the leading planet — the one just after the empty trine in zodiacal order. A Splash scatters the attention, while a Splay or a Seesaw draws the eye to tension within the configuration. Modern software usually flags the shape for you.
Historical Origin
The seven-shape system was introduced by Marc Edmund Jones in *The Guide to Horoscope Interpretation* (1941), grounded in his observational pattern-research within the Sabian Symbol school. Dane Rudhyar developed the humanistic reading of these shapes in *The Astrology of Personality* (1936) and in later works. The Hellenistic, medieval Latin, and Vedic traditions do not single out a chart-shape typology as a distinct technique.
Further Reading
- Robert Hand, Horoscope Symbols
- Dane Rudhyar, The Astrology of Personality