Sextile in astrology: when two planets hold the door open

A sextile is when two planets sit 60° apart, a sixth of the way around the zodiac. The two planets get on well and are happy to help each other, as long as you ask. It’s the friendly neighbour of the aspects, the one who would lend you a ladder but won’t climb up and clear your gutters unprompted.

Sextile at a glance

Angle: 60°
Symbol: A six pointed star
Hali’s orb: 5°, or 6° when the Sun or Moon is involved
Nature: Opportunity, easy cooperation that rewards effort
Traditional family: Soft, alongside the trine
Signs it links: Fire with air, earth with water

What does a sextile mean in astrology?

It means two parts of you speak the same language with a slightly different accent. They understand each other, they like each other, and when you give them a reason to work together they do it with surprisingly little fuss.

The catch, if it is one, is that a sextile rarely insists. A square nags until you deal with it. A sextile waits by the door with its coat on. If your Mercury is sextile Jupiter, ideas and opportunities tend to find you, but they still need you to write the email.

Take Venus sextile Mars, for example. Affection and desire are on good terms, and flirting can feel like a game you’re allowed to win. Or the Moon sextile Saturn, where feelings and structure cooperate, and a steady routine can be the thing that makes you feel looked after.

Why do sextiles feel cooperative?

Because of the signs they usually connect. Two planets 60° apart tend to fall in signs two apart, and those signs belong to compatible elements. Fire and air feed each other, the way a breeze feeds a campfire. Earth and water work together, the way rain turns soil into a garden.

So a sextile from an Aries planet to a Gemini planet links fire and air, and one from Taurus to Cancer links earth and water. The signs also differ in mode, cardinal with mutable for example, which gives the pair a little variety to play with.

How close does a sextile need to be?

Hali counts a sextile when two planets are within 5° of the exact 60°, widened to 6° when the Sun or Moon is one of them. That’s a narrower orb than the other major aspects, because tradition treats the sextile as the gentlest of the five and asks it to be closer before it counts.

As with every aspect, tighter means stronger. Your Hali reading shows the exact orb next to each sextile, like “Venus sextile Mars · 1.2°”, so you can judge it for yourself.

How common are sextiles?

Sextiles turn up in almost every chart, and one slow generational pair is especially widespread. These figures come straight from Hali’s own calculations.

Measure	Result
Charts with at least one sextile	96.8%
Average per chart	3.3

Most common sextiles	Share of charts
NeptunesextilePluto	61.8%
MercurysextileVenus	9.7%
SunsextileMars	9.4%
UranussextileNeptune	9%
VenussextileMars	7.4%
SunsextileJupiter	7.2%

From Hali's own calculation of 40,000 random charts between 1950 and 2049, using the ten planets and Hali's orbs.

The outer planets move so slowly that some sextiles last for many years and belong to a whole generation. Your personal sextiles, the ones involving the Sun, Moon, Mercury, Venus and Mars, are the ones that make your chart yours.

What is the difference between applying and separating sextiles?

An applying sextile is one where the faster planet is still moving toward the exact 60°. A separating sextile is one where it has already passed it.

Many astrologers read an applying aspect as building, something still gathering itself, and a separating one as easing off, something you’ve already had a chance to practise. Hali’s engine tracks which is which for every aspect in your chart.

What did traditional astrologers say about the sextile?

Ptolemy counted the sextile among the aspects that make sense geometrically, because 60° is a sixth of the circle. Traditional astrologers grouped it with the trine as a harmonious aspect, and often described it as a milder trine, helpful but less forceful.

Modern astrologers tend to frame it as opportunity. The talent is there, the doors are there, and the sextile is an invitation to use them.

Which planets can’t make a sextile?

The Sun and Mercury never do, because Mercury always stays too close to the Sun. The Sun and Venus can’t either, for the same reason. Mercury and Venus can, just about, which is why that pair turns up on the list of common sextiles.

Every sextile, planet by planet

Each pair has its own page, read in one chart and between two people.

Frequently asked questions

Is a sextile good or bad?

Neither. It’s a helpful aspect, traditionally counted as soft, but its help comes when you use it. A sextile you never act on can sit in your chart like a gift card in a drawer.

What is the orb for a sextile?

Hali uses 5°, or 6° when the Sun or Moon is involved. Other astrologers use slightly different orbs, which is one reason two apps can list different aspects for the same chart.

What’s the difference between a sextile and a trine?

Both are soft aspects. A trine links signs of the same element and flows on its own. A sextile links signs of compatible elements and works best when you make the first move.

Can a sextile cross into the wrong signs?

Yes. Near the edge of a sign, two planets can be 60° apart by degree while sitting in signs one or three apart instead of two. Astrologers call this an out of sign or dissociate aspect, and some give it a little less weight.

Sources and methods

Frequencies computed by Hali from random charts using the ten planets and Hali’s orbs (5° for sextiles, 6° with the Sun or Moon). The note under the tables gives the sample.

The sextile as a harmonious aspect follows Ptolemy, Tetrabiblos, Book I. Our data is free to use under CC BY 4.0.

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