Draw a circle.
Split it into 12 equal parts.
Label each part as one of the zodiac signs, in order, counterclockwise. Aries, Taurus, etc.
The sign opposite from any other sign on the wheel is the most compelling match.
All signs of the same element are stable in their bond.
Go back to your circle,
color Aries, Leo and Sag red
color Taurus, Virgo and Cap green
color Cancer, Scorpio and Pisces blue.
All signs with the same colors have the same element – red is fire, green is earth, white is air, blue is water.
The sign on either side of the opposite sign has difficulty getting along. The signs that are the opposite element but not the opposite position on the wheel are the biggest clashes of incompatibility.
This is an isolated technique. Everyone has sevral important signs – rising sign, sun, moon, and venus are particularly important. To get a pretty solid picture of compatibility we consider *all* of them.
– Vic DiCara