Cancer compatibility
All twelve pairings, each from the angle between the signs on the wheel — grouped by aspect so you see the structure instead of a shortlist somebody picked.
Trine
120° apart · 2 pairings
120°
Cancer & Scorpio Same element. The smoothest combination in the zodiac — mutual understanding without translation, at the risk of never being challenged.120°
Cancer & Pisces Same element. The smoothest combination in the zodiac — mutual understanding without translation, at the risk of never being challenged.Square
90° apart · 2 pairings
Semi-sextile
30° apart · 2 pairings
30°
Cancer & Gemini Neighbouring signs share a border and little else. They tend to find each other slightly baffling in a way that is more irritating than dramatic.30°
Cancer & Leo Neighbouring signs share a border and little else. They tend to find each other slightly baffling in a way that is more irritating than dramatic.Quincunx
150° apart · 2 pairings
150°
Cancer & Sagittarius Nothing in common: different element, different modality, different polarity. Requires deliberate effort to even understand each other.150°
Cancer & Aquarius Nothing in common: different element, different modality, different polarity. Requires deliberate effort to even understand each other.How these are worked out
Compatibility here is the angle between two signs on a 360° wheel, nothing more. Signs four apart are 120° — a trine, sharing an element. Three apart is 90°, a square. Six apart is the 180° opposition. That geometry is all that classical compatibility rests on, and it is why the same pairing gets described as magnetic on one site and doomed on another: the opposition is read both ways.
What it cannot do is account for two actual people. Every Cancer born in the same month shares this entire page, which is roughly 660 million people handed one answer. Synastry at least uses both birth charts — and even there we publish the baseline, because a score without one means nothing.