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The 11 aspects and the planet pairs of a birth chart

Tropical zodiac, Western astrology

An aspect is the angle between two points of the birth chart. This page lists the 11 aspects and the 65 planet pairs, each pair with its aspect cards.

• Conjunction: meaning and how to read itA conjunction is the closest contact two planets or points can make: they sit at the same place in the zodiac, 0° apart, and act as one. The…
• Opposition: meaning and how to read itAn opposition links two planets or points on opposite sides of the zodiac, 180° apart, each looking straight at the other. It sets up a…
• Trine: meaning and how to read itA trine links two planets or points 120° apart, a third of the circle. They usually fall in signs of the same element, so they speak a…
• Square: meaning and how to read itA square links two planets or points 90° apart, a quarter of the circle. They usually sit in signs of the same modality but different…
• Sextile: meaning and how to read itA sextile links two planets or points 60° apart, a sixth of the circle. They usually fall in signs of compatible elements (fire with air…
• Quincunx (150°): meaning and how to read itA quincunx links two planets or points 150° apart, five signs from each other. The signs share no element and no modality, so the two…
• Semi-sextile (30°): meaning and how to read itA semisextile links two planets or points 30° apart, in neighbouring signs that share no element and no modality. Each planet works in quite…
• Semi-square (45°): meaning and how to read itA semisquare links two planets or points 45° apart, half a square. It carries the friction of the square in a smaller, more nagging form: a…
• Sesquiquadrate (135°): meaning and how to read itA sesquiquadrate links two planets or points 135° apart, a square and a half. It is a minor aspect of friction, like the semisquare but on…
• Quintile (72°): meaning and how to read itA quintile links two planets or points 72° apart, one fifth of the circle. It is the best-known aspect of the fifth harmonic, which modern…
• Biquintile (144°): meaning and how to read itA biquintile links two planets or points 144° apart, two fifths of the circle, double the quintile. Like the quintile it belongs to the…