Cosmos
Four elements, seven planets, twelve signs. Three layers of one map.
Fire
Hot and dry
Follow a pair of qualities through the table. Fire shares heat with Air and dryness with Earth; Water has the opposite pair.
Sign boundaries
The tropical zodiac divides a circle into twelve 30° signs, beginning with Aries at the March equinox. Move the point to see where each one starts.
29.9° Aries
Aries starts at 0°, so subtract 0° from 29.9°.
The four elements
Agrippa’s four elements each pair two qualities from hot, cold, dry and moist. In his account, the things we meet are mixtures, not pure elements. This is a historical philosophy of nature, not modern chemistry.
The 1909 table carries those pairs into its rows. Air, Water and Fire each have a Hebrew letter path. Earth and Spirit sit in supplementary rows, 32 bis and 31 bis, and add no paths to the 22.
Agrippa, Book I, chapter III · printed pp. 6–7, PDF pp. 34–35 ↗
The seven planets
Reading up from the elements through the planetary rows of 777 gives this order:
“Planets” here means the traditional seven, Sun and Moon included. The ring compares their correspondences; for positions on a real date, open today’s sky.
Signs and constellations
The tropical signs here are equal intervals of ecliptic longitude, measured from the equinox. In the Ashmand Tetrabiblos, Book I, chapters XIV and XXV tie the beginnings of signs to the equinoxes and solstices.
A modern constellation is an area of sky with boundaries defined by the International Astronomical Union. It is neither a stick figure nor a 30° sign, even where the names match. Row 2 of 777 groups the zodiac with the fixed stars, and the Tree keeps that historical label.