by Terry Nazon
Angular relationships between planets in your natal birth chart and transiting and or progressed planets form aspects. It is through these aspects including the planets in the particular houses, and aspects made to each other with the transits or progressions that predictions can be made. Sounds complicated but, the more experience you have the easier it becomes!
ZODIACAL ASPECTS, those most widely considered, are measured in degrees along the Ecliptic. They are based upon fractional divisions of the 360-degree circle of the ecliptic - as measured in arc from the point of an observer on the Earth.
Conjunction. Said of two planets occupying the same degree of Longitude along the Ecliptic. It is often classed as a position rather than an aspect.
Conjunction: two or more planets within about 8 degrees of each other. The conjunction intensifies the planets and houses involved.
Stellium: 6 or more planets within 8 degrees of each other. In the same sign or house. This opinion differs amongst astrologers.
Trine: 120 degrees angle to another planet. This gives an easy flow of energy and is considered the most fortunate or lucky of the aspects.
Square: a 90 degree aspect between the planets. creates a friction or angst that requires an action or decision to be made.
Sextile: A 60 degree angle between planets. This gives opportunites for change and growth
Opposition: a 180 degree aspect between two or more planets creates an opposition. there is little or no common ground in an opposition and conflict results.
Inconjunct: a 150 degree aspect between two planets
Opposition: Dividing the circle by one-half, results in the Opposition, a 180° separation, the reverse of a conjunction.
Trine: Dividing the circle by one-third, results in the, or 120° separation.
Yod: also called the finger of God two inconjuncts and their common planet
Subdividing the one-half aspect, there results the square, quadrate or quartile (90°), Semi-square, semi-quadrate or semi-quartile (45°), and the sesquiquadrate (135°) - square plus semi-square - the inversion of the semisquare.
The matter of Orbs is one that has never been settled. The figures given are merely an average of opinion:
Names have been given to these Aspects, as follows: 0°, Prominence; 30°, Growth; 45°, Friction; 60°, Opportunity; 90°, Obstacle; 120°, Luck; 135°, Agitation; 150°, Expansion; 180°, Separation.
Quintile. A group of aspects, introduced by Kepler, based on a division of one-fifth of the circle. They have had limited adoption, and their value is chiefly in directions. They are:
Combust.Said of a planet closer than 5° to the Sun. It introduces factors that considerably alter the interpretation of the conjunction.
Cazimi. A planet within 0°17' of the Sun's longitude is said to be "in the heart of the Sun" - or Cazimi. Ancient authorities deemed that it fortified the planet as much as a Combust position debilitated it; but modern authorities generally ignore the distinction and classify it as combust, imparting to the nature a one-track viewpoint on all matters appertaining to the planet so placed.