The Major aspects in Astrology
These aspects are commonly used and are most influential.

Conjunction ☌	0° (0-6) or in the same sign/house • Energies blend, can cause friction • Fusion, merging, planting a seed or acting upon what you’ve planted • Transit : A feeling within you, you taking action most of the time • Considered harmonious depending on the planets involved • Could act as a blind spot especially with the Sun (=combust) • In aspect maximum orb of 6° • Associated with number 1
Sextile ⚹	60° or 2 signs/houses apart • Energies supporting each other, makes lazy • Cooperation, needs more effort than the trine aspect • Transit : Good for harmonizing relationships • Considered harmonious but makes lazy, weakest aspect, shows possible talents • In aspect maximum orb of 3° • Associated with number 6
Square □	90° or 3 signs/houses apart • Creates friction, considered hard and challenging, stimulates action • Conflict, difficulties, getting things moving, change, powerful • Transit : Brings tension, action or breakups in relationships • Could be considered as ‘good’ because it stimulates action • Acts like Mars energy • In aspect maximum orb of 3° • Associated with number 4
Trine △	120° or 4 signs/houses apart • Assists and brings opportunities, natural talents • Harmony, cooperation • Transit : Brings new opportunities in relationships, circumstances • Considered harmonious, cooperative energy of two planets • Acts like Venusian energy • In aspect maximum orb of 5° • Associated with number 3
Opposition ☍	180° or in the opposite sign/house • Attraction, considered hard and challenging • Separation, things beyond your own control • Transit : Others or circumstances outside of your control create events • Different energies • Acts like Saturnian energy • In aspect maximum orb of 5° • Associated with number 2

The Minor aspects
These are not so common in practice but can give deeper insight onto the whole story of a horoscope.

Semi-Sextile ⚺	30° or 1 sign apart • Subtle friction, differences, awkward • Unrealized potential • Connector to other aspects involving one of the planets • Need to learn the differences and compromise • “You have what i don’t have” • Healing & transformation • Common in a natal chart, not so much in synastry • In aspect maximum orb of 3° • Associated with number 7
Bi-Quintile bQ	144° or 6 signs apart • Creative power. Stimulate & use gifts • Inactive ability, vaguely aware • Mental & psychological energy • In aspect maximum orb of 3°
Quincunx ⚻	150° • Differences, lack of common ground • Stressful, discomfort • Push-pull, Ping-pong • separate expressions, individual functioning • In aspect maximum orb of 3° • Associated with number 5