Planetary aspects, Western and Vedic

An aspect is a relationship between two points in a chart. Both Western and Vedic astrology use aspects to show how planets influence each other, but they measure them in quite different ways. This guide explains both systems and where they overlap.

Western aspects: angles and orbs

In Western astrology an aspect is formed when two planets are a particular number of degrees apart along the zodiac. The classical, or Ptolemaic, aspects are based on dividing the 360° circle by small whole numbers.

The orb is the allowed margin either side of the exact angle. Orbs are a matter of convention: many astrologers allow wider orbs for the Sun and Moon and narrower ones for minor aspects, and some use very tight orbs of two or three degrees. The closer an aspect is to exact, the stronger it is considered.

Minor aspects

Many Western astrologers also use the semi-sextile (30°), semi-square (45°), sesquiquadrate (135°) and quincunx or inconjunct (150°), and some use quintiles (72°) and other harmonic angles. These are read with orbs of one to three degrees and are usually given less weight.

Applying and separating

An aspect is applying when the faster planet is moving towards the exact angle and separating when it has passed it. Applying aspects are traditionally considered stronger and more relevant to what is unfolding, a distinction that matters especially in horary astrology.

Aspect patterns

Several aspects can link up into recognised shapes: the grand trine (three planets each 120° apart), the T-square (two planets in opposition, both square a third) and the grand cross (four planets in mutual squares and oppositions). These patterns are read as major themes in a chart.

Vedic aspects: graha drishti

In Jyotish, drishti means “sight”. A planet is said to look at certain houses counted from where it stands, and to influence any planet or house it sees. In the classical Parashari system these aspects are usually counted by whole signs, with the planet’s own house counted as the first.

• All planets aspect the 7th house from themselves — the house directly opposite.
• Mars also aspects the 4th and 8th houses from itself.
• Jupiter also aspects the 5th and 9th houses from itself.
• Saturn also aspects the 3rd and 10th houses from itself.
• Rahu and Ketu are given the 5th and 9th aspects (like Jupiter) by many astrologers, and sometimes the 2nd or 12th as well. Their aspects are debated, and some schools give them none.

So Jupiter in the 1st house aspects the 5th, 7th and 9th houses, and Saturn in the 4th aspects the 6th, 10th and 1st. Our planetary aspects calculator lists every drishti in your chart.

Full and partial aspects

Parashara also describes partial aspects: every planet casts a quarter-strength aspect on the 3rd and 10th, a half-strength aspect on the 5th and 9th, and a three-quarter aspect on the 4th and 8th. The special aspects of Mars, Jupiter and Saturn are simply cases where that planet’s partial aspect is raised to full strength. In everyday practice most astrologers use only the full aspects.

Degree-based drishti

A more detailed method, sphuta drishti, measures the exact angular distance and gives an aspect value in virupas. This is used in strength calculations such as Shadbala (see Ashtakavarga and Shadbala), and shows that Vedic astrology does have a degree-sensitive side, even if the sign-based method dominates readings.

Rashi drishti: aspects between signs

The Jaimini school uses aspects between signs rather than planets. Movable signs aspect all fixed signs except the one next to them; fixed signs aspect all movable signs except the adjacent one; and dual signs aspect one another. Any planet placed in a sign shares that sign’s aspects. Rashi drishti is central to Jaimini techniques such as chara dasha and karakas.

Key differences

• Symmetry — Western aspects are mutual: if Mars squares Saturn, Saturn squares Mars. Vedic special aspects are one-way: Saturn may aspect Mars through its 10th-house aspect while Mars does not aspect Saturn back.
• Squares and trines — the Vedic 4th/10th and 5th/9th relationships resemble Western squares and trines, but only certain planets cast them as full aspects.
• Conjunction — in Jyotish two planets in the same sign are associated (yuti) rather than “aspecting”, but the effect is similar to a Western conjunction.
• Benefic and malefic — Vedic readings weigh who is aspecting: Jupiter’s aspect is traditionally protective, while that of Saturn or Mars adds pressure. Western astrology puts more weight on the type of angle than on the planet casting it.
• Sextile — there is no full Vedic aspect at 60°; the 3rd and 11th relationships are treated through house meanings instead.

Reading aspects with balance

In both traditions, so-called difficult aspects are often where effort and resilience develop, and easy aspects can describe gifts that are taken for granted. No single aspect defines a person. Look at the whole chart, the strength of the planets involved and, in Jyotish, the dasha running at the time. You can see your own planets and their sign placements in the birth chart calculator.

Frequently asked questions

Does Jupiter aspect the house it sits in?

In the Vedic sense, no. Its own house is counted as the first, and its aspects fall on the 5th, 7th and 9th from there. A planet influences its own house by occupation rather than by aspect.

Are squares bad?

Not in modern Western practice. Squares describe tension that tends to drive action. Many accomplished people have strongly aspected charts.

Can I convert Western aspects into Vedic ones?

Only roughly. The systems use different zodiacs and different rules, so it is clearer to read each chart in its own framework.