What Western Aspects Are

A Western aspect is an angular relationship between two planets, measured as the number of degrees separating them along the ecliptic. Where Vedic drishti counts whole houses, the Western tradition measures the actual angle. Two planets 120 degrees apart are in trine whether or not they sit in houses that count as five apart, and the aspect is judged by the precision of that angle rather than by house position.

The set of angles used is not arbitrary. The major aspects — the Ptolemaic aspects, named for the second-century astronomer whose work transmitted them — are divisions of the 360-degree circle: by two gives 180 degrees, by three gives 120, by four gives 90, by six gives 60. This harmonic derivation is why these five angles are treated as primary and others as minor.

The Five Major Aspects

Conjunction — 0 degrees. Two planets at the same point in the zodiac. The tradition reads this as fusion: the two energies blend and act as one, and the character of the result depends entirely on which planets are involved. A conjunction is neither favourable nor difficult in itself.
Sextile — 60 degrees. Two signs apart. Traditionally read as an easy, supportive contact offering opportunity, but one that tends to require some initiative to bring out. Generally considered milder than a trine.
Square — 90 degrees. Three signs apart. Read as friction, tension and challenge — the classical "hard" aspect, associated with obstacles that force effort and produce growth through resistance.
Trine — 120 degrees. Four signs apart. Read as the most harmonious contact, indicating natural talent and ease of flow between the two planets, sometimes to the point of being taken for granted.
Opposition — 180 degrees. Six signs apart, directly across the chart. Read as polarity and tension requiring balance, often externalised — experienced through other people or through circumstances that pull in two directions.

Beyond these five, minor aspects appear in some Western work: the semi-sextile at 30 degrees, the semi-square at 45, the sesquiquadrate at 135, and the quincunx or inconjunct at 150. These are given considerably less weight and tighter tolerances than the majors, and many practitioners set them aside entirely.

Orbs

Exact angles almost never occur. The orb is the tolerance allowed either side of the perfect angle within which an aspect is still counted. A trine with an orb of 6 degrees means the two planets are separated by anything from 114 to 126 degrees and the aspect is considered to apply.

There is no single agreed table of orb values, and this is a genuine point of variation between astrologers rather than a settled rule. Common practice allows wider orbs for the major aspects than the minor ones, and wider orbs still when the Sun or Moon is one of the two bodies, on the reasoning that the luminaries exert stronger influence. Typical values run to somewhere around 8 to 10 degrees for a conjunction or opposition, 6 to 8 for a square or trine, 4 to 6 for a sextile, and 2 to 3 degrees for the minor aspects. Whichever table KP applies will be stated with the aspect list, and comparing charts across different software requires checking that the orb settings match.

Two further distinctions follow from orbs. An aspect is applying when the faster planet moves toward the exact angle and separating when it moves away; applying aspects are traditionally treated as stronger. And the tighter the orb, the more forcefully the aspect is held to operate.

How Western Aspects Differ from Vedic Drishti

The two systems share vocabulary and almost nothing else. The differences are structural, and mixing the two produces contradictory readings.

Measurement. Western aspects are exact angular separations with an orb. Vedic drishti is counted in whole houses from the occupied house, with no orb involved.
Symmetry. Western aspects are always mutual — if A squares B, then B squares A. Vedic special aspects are one-directional: Saturn aspects the 3rd and 10th from itself without those houses aspecting Saturn back.
Which angles count. Western technique uses 0, 60, 90, 120 and 180 degrees for all planets equally. Vedic technique gives every planet the 7th-house aspect, then grants Mars the 4th and 8th, Jupiter the 5th and 9th, and Saturn the 3rd and 10th — aspects specific to those planets and with no Western equivalent.
The 120-degree case. The Western trine has no counterpart for most planets in Vedic technique. Jupiter's 5th and 9th aspects land at roughly the same distance, but they belong to Jupiter alone rather than to any planet at that separation.
Zodiac. Western astrology generally uses the tropical zodiac, Vedic the sidereal, so the same moment yields planetary longitudes differing by the ayanamsha — currently around 24 degrees.
Bodies. Western practice includes Uranus, Neptune and Pluto as aspecting planets. Classical Vedic technique works with the nine grahas and has no rules for the outer planets.

Neither approach is a corrupted version of the other; they are independent traditions that developed distinct rules for the same underlying geometry. If you are working primarily in a Vedic framework, treat a Western aspect table as supplementary information rather than as a cross-check, and compare it against the sidereal planetary positions to see how far the two zodiacs place the same planet apart. The house significations remain the reference for what any aspected area of the chart is taken to govern, and full charts are available in the Kundali section.

Frequently Asked Questions

What are the five major aspect angles?

Conjunction at 0 degrees, sextile at 60, square at 90, trine at 120 and opposition at 180. These are the Ptolemaic or major aspects, derived by dividing the 360-degree circle by one, six, four, three and two respectively.

Are squares and oppositions bad aspects?

The older tradition labelled them malefic, but most modern Western practice describes them as tension-producing rather than harmful — contacts that generate friction and demand adjustment, and which are frequently present in the charts of people who achieve a great deal. Trines and sextiles are described as easy, which is not the same as being more valuable.

Why do different programs show different aspects for the same chart?

Almost always because of orb settings. There is no universally agreed orb table, so software configured with an 8-degree orb will list aspects that software using 5 degrees excludes. Differences in which minor aspects and which bodies are included account for most of the rest.

Can Western aspects be used alongside a Vedic chart?

They can be displayed together, and KP shows them as separate information, but they should be interpreted separately. The two systems use different zodiacs and incompatible aspect rules, so combining their conclusions in a single judgement tends to produce contradictions rather than confirmation.