Soil and water are negative signs.
Fire signs: Aries, Leo and Sagittarius.
Earth signs: Taurus, Virgo, Capricorn.
Air signs: Gemini, Libra and Aquarius.
Water signs: Cancer, Scorpio and Pisces.
The same element constellation can be connected into a regular triangle on the astrolabe.
Extended data
The graphic features formed in the astrolabe, that is, the so-called (pattern): it can affect the whole astrolabe, personal life and the changes at various stages.
Analysis of elements and properties in astrolabe. (Four elements) For example, how many senses are there in the four images of earth, water, fire and wind: the earth image is the main sense, the water image is the main sense, the fire image is the main intuition, and the wind image is the main sense. "Three natures" such as: basic, fixed and changeable. How much is three-point induction: the basic subject is dynamic or static, the fixed subject is unchanged, and the variable subject is uncertain.