To form a more accurate picture of the energies of life it is necessary to look at the dimensions of the eighteen constellations that the Sun, Moon and planets traverse. The astronomical constellations which are observable in the sky are not divided into the twelve neat and equal segments as typically defined in astrology.
To define the constellation dimensions, Astronomical Astrology uses the constellation boundaries as defined by the International Astronomical Union (IAU) and which is observable in the night sky. The most noticeable difference to other forms of astrology, is that not all constellations are of the same dimension. As an example, the constellation Pisces occupies a much larger space of the sky than the constellation of Cancer. The cosmos add complexity as the inclined path through each constellation results in the Sun, Moon and planets each spending different amounts of time travelling through each astronomical constellation.
Considering these two aspects, each constellation fills varying arcs of the sky. This varies quite significantly from 6.5 days for Scorpio to almost 45 days for Virgo. Tying the constellation dimension complexity into the precession of the equinoxes, means that Astronomical Astrology aligns exactly with the observable universe and science.