Composite Chart, Midpoint-method

Using the horoscopes of both partners, a midpoint chart is calculated for all planets and house positions. The composite Ascendant is also calculated as a midpoint of both charts. With additional tables (PDF).

The Composite Chart is calculated from two natal charts and is supposed to give information on the nature of the relationship between two poeple. Each planet in the composite chart is on the midpoint between its positions in the two natal charts. E.g. the composite Sun takes its position in the zodiac exactly between the two natal Suns, the composite Moon is exactly in the middle between the two natal Moons, etc.

Unlike in a real natal chart, it is possible that composite Venus or Mercury are in opposition to the Sun or each other. Some drawing styles move the planet by 180° in such cases, so that it is close to the Sun.

There are two different calculation methods for the Ascendant, MC and the houses:

• "Midpoint method": All axes and houses are calculated in the same way as the planets: as composite points.
• "Reference place method": First, the composite MC is calculated in the same way as the composite planets. Then, from this MC the Ascendant and houses are calculated for the geographical latitude of the set reference place. It is recommended to use a place as reference place at which the connection between the two people "happens". It can be set in the "Extended Chart Selection" under "Default settings."

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