Equal Houses

Equal House System
Equal House System

The article is Part 2 of a three-part series on ecliptic-based astrological house division. If you haven’t read Part 1, click here.

Part 2: Ecliptic-based House Division:

The Equal-House system is a variation of the whole sign house system. The difference is that the degree of the ascendant defines the start of the first house and becomes the starting degree of each of the remaining eleven houses.  The MC floats and does not define the cusp of the tenth house.

Since Hellenistic times and before, astrologers have been concerned with the motion of the planets rising over the horizon, culminating at the MC, and finally disappearing into the darkness at the descendant.  This is called primary motion, it is concerned with the rotation of the earth on its axis and with the motion of the stars, luminaries, and planets above us as they move during the course of the day.

The Acendant is the point where the ecliptic meets the local horizon. With the equal house system, we start to anchor the houses to the rotation of the earth by linking the ecliptic with the local horizon of the native or event. As we have noted in a previous post, the ecliptic is extra lunar, it is not of this earth.  However, the local horizon is sublunar. So, with equal houses, ancient astrologers found an initial way to ground the ecliptic to events on earth.

The personal point of the degree of the Ascendant is emphasized in this system. The symbolism becomes a bit more grounded in that the eastern horizon takes on an elevated importance.

In the entire range of traditional natal astrology, the first house represents YOU, it represents the native. The rest of the houses represent everybody and everything else! Echoing the degree of the Ascendant in each of the subsequent houses underlines that this house system symbolizes YOUR money (2nd house), YOUR siblings (3rd house), YOUR home (4th house), and so on.

To compare equal houses with whole sign, in WSH there is no difference between a planet being domiciled in a sign and a planet being in a house. In whole sign houses, we don’t really have houses, what we have are signs.  Can signs alone be used to define house cusps?  Of course they can! The WSH system was probably used extensively in Hellenistic times and is one of the major approaches in Vedic astrology. However, when we use this method we lose the connection of astrological houses moving clockwise by primary or diurnal motion. In WSH, secondary motion along the ecliptic is emphasized, that is, planets and other objects in space moving in a counterclockwise direction along the ecliptic.

In WSH, signs are houses. A planet domiciled in a sign in WSH exactly corresponds to it being in an astrological house, so we lose the symbolism that we get when we separate domiciliation (Jupiter and Neptune in Pisces) from the symbolism of houses (Jupiter in Pisces in the 1st House, Neptune in Pisces in the 2nd House).

In Equal Houses, we start to get this symbolism back (see chart above). We put the signs back in the heavens, as the first manifestation of the Primum Mobile, and we begin to ground the houses back to the geocentric earth, where, after all, we live!

By defining the Ascendant as the start of the first house, we regain the demarcation between a planet being domiciled in a sign (Jupiter and Neptune in Pisces) and planets being in an astrological house (Jupiter in Pisces in the 1st House, Neptune in Pisces in the 2nd House).

However, the work of the ancient astrologer was by no means finished! The equal house system was still a non-quadrant house system in that the MC is floating. To further ground the houses to the sub-lunar realm of the earth, the ancients developed other house systems, which anchored the local meridian or latitude of the native to the cusp of the culminating tenth house.

In my next post, we’ll look at the quadrant house system that is most often referenced by scholars to the Hellenistic period.  Today, it is known as the Porphyry house system.