∠ Semi-square

Moon semi-square Mars

Need and drive collide. The traditional reading is irritability, defensiveness and reacting before understanding, often traced to a home where anger was either everywhere or forbidden.

Angle
45°
Orb used
±2°
Type
Hard
Bodies
☽ ♂

What these two are about together

Need and drive. How quickly feeling becomes action, and what a person does with anger.

What a semi-square does

A semi-square is exactly half a square, and the tradition reads it as the same kind of friction at a smaller scale. Where a square describes a conflict that has to be dealt with, a semi-square describes the sort of persistent low-grade annoyance that never quite forces the issue and never quite goes away either.

How it reads

Need and drive collide. The traditional reading is irritability, defensiveness and reacting before understanding, often traced to a home where anger was either everywhere or forbidden.

In practice

Read as irritation rather than demand. Kepler took the minor hard aspects seriously and much of the tradition since has treated them as real but secondary, which is the reading this site uses.

What to watch for

Accumulation. One semi-square is a footnote. Several of them to the same planet is the tradition's picture of somebody worn down by things too small to name.

The two planets

Moon: Need, instinct and what settles you

Mars: Drive, anger and how you go after things

Famous charts with moon semi-square mars

352 of the 13,000 documented charts on this site have it. The 24 best known are below. Every one is computed from that figure’s own birth data, with the source of the birth time stated on their page.

22 of these are marked approximate: the figure has a birth date and no birth time, and the Moon moves far enough in a day that the hour could change whether the aspect holds. The rest do not depend on the hour at all.

Browse all 13,000 charts

Moon and Mars at other angles

Moon and Mars also have a midpoint: the halfway point between them, read as a third place in the chart rather than as an angle between two.

Find this in your own chart

A reading like this only tells you what the pairing is associated with. Whether Moon and Mars actually make this angle in your chart depends on your birth date, time and place.

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