Most astrology starts with a birth. Horary starts with a question. You cast a chart for the moment a sincere question is asked, and the chart is read as if the question itself had been born: it has a body, a character, and an outcome written into it.
That sounds strange until you see how mechanical the method is. Horary has rules, and the rules are strict. You pick a planet for the person asking, a planet for the thing asked about, and then you look at whether those two planets come together. This guide covers where the method comes from, how to assign significators, what "perfection" means, the checks you run before judging, and a full worked example.
Where horary comes from
Question charts are old. Arabic and Persian astrologers wrote on "interrogations" in the medieval period, and the method passed into Latin Europe from there. The book most English-speaking horary astrologers still work from is William Lilly's Christian Astrology, published in London in 1647. Lilly was a practising consultant, and the book reads like one: hundreds of pages of rules for questions about sickness, theft, marriage, lawsuits, and missing cattle, with his own case charts worked through in detail.
The revival of horary in the twentieth century leaned heavily on Lilly, which is why his vocabulary (querent, quesited, perfection, prohibition) is still standard. You don't need to share his worldview to use his method. You do need to respect his rules, because horary without rules turns into guessing with a chart attached.
The basic setup: querent and quesited
The querent is the person asking. The quesited is the person or thing asked about.
The querent is always given the 1st house. Their main significator is the ruler of the sign on the Ascendant, using traditional rulerships: Mars for Aries and Scorpio, Venus for Taurus and Libra, Mercury for Gemini and Virgo, the Moon for Cancer, the Sun for Leo, Jupiter for Sagittarius and Pisces, Saturn for Capricorn and Aquarius. Horary doesn't use Uranus, Neptune, or Pluto as house rulers. The Moon is the querent's co-significator in almost every question, so you always watch her too.
The quesited gets whichever house describes it, and its significator is the ruler of that house's cusp. That's the whole cast of characters in most charts: two planets, plus the Moon.
Choosing the house of the question
Getting the house wrong ruins the judgment before it starts. The common assignments:
- 2nd house: the querent's money and movable possessions (a lost ring, a wallet)
- 3rd house: siblings, neighbours, short trips, messages
- 4th house: home, land, parents (traditionally the father), the end of the matter
- 5th house: children, pregnancy, pleasure
- 6th house: illness, employees, small animals
- 7th house: a partner, a spouse, an open enemy, "any other person" with no closer house
- 10th house: a job, career, promotion, the boss, authority
- 11th house: friends, hopes and wishes
Houses can also be turned. If you ask about your partner's money, that's the 2nd house from the 7th, which is the 8th house of the chart. Turned houses are powerful, but beginners overuse them. Use the radical house when one fits.
Perfection: how a chart says yes
A horary chart says yes when the significators perfect, meaning they complete an aspect. There are three main ways.
Direct aspect. The faster planet applies to the slower one by a major aspect (conjunction, sextile, square, trine, opposition) and reaches the exact degree before either changes sign. Mercury at 12 degrees Gemini applying to a trine of Saturn at 16 degrees Aquarius will perfect in 4 degrees. Trines and sextiles perfect easily. Squares perfect with effort or delay. An opposition can bring the thing about and leave you regretting it.
Translation of light. The two significators aren't applying to each other, but a faster planet separates from one and applies to the other, carrying the connection between them. In practice this often shows a go-between: an agent, a friend who puts in a word.
Collection of light. Both significators apply to a third, slower planet, which gathers them. Lilly read this as a third party with authority bringing the matter together.
Timing comes from the number of degrees left before perfection, converted into units (days, weeks, months) according to the signs and houses involved. Treat timing as a rough estimate until you've studied the rules properly.
How a chart says no
Horary is as good at "no" as at "yes." Three patterns come up constantly:
- No aspect at all. If the significators don't apply to each other and nothing translates or collects, the default answer is no.
- Prohibition. Another planet perfects an aspect with one of the significators first, blocking the connection. Something gets in the way.
- Refranation. One significator turns retrograde before the aspect completes. The matter looks like it's coming together, then someone backs out.
Also check the condition of the planets. A significator in its detriment or fall can still perfect, but what arrives may be worse than hoped.
Considerations before judgment
Before judging, horary astrologers run a set of checks that can make a chart unreadable or change how you read it. Lilly listed these, and most modern practitioners use some version:
- Early or late Ascendant. Under about 3 degrees rising suggests the question is premature. Above about 27 degrees suggests the matter is already decided or too late to change.
- Void of course Moon. If the Moon makes no further major aspect before leaving her sign, the traditional reading is "nothing will come of it." Lilly allowed exceptions when the Moon is in Taurus, Cancer, Sagittarius, or Pisces.
- Moon in the Via Combusta, the stretch from 15 degrees Libra to 15 degrees Scorpio, considered unstable.
- Saturn in the 1st or 7th house, read as a warning that the question is afflicted, or that the astrologer's judgment may go wrong.
These aren't automatic stop signs. They're flags. A late Ascendant on "should I sign this contract?" when the contract was signed yesterday is the chart being accurate, not the chart being broken.
A worked example: will I get the job?
Someone asks, sincerely and for the first time, whether they'll be offered a job they interviewed for. The chart has 12 degrees Gemini rising and 5 degrees Aquarius on the Midheaven.
The querent is Gemini rising, so EMercury. Mercury sits at 14 degrees Cancer, in the 2nd house. The WMoon is co-significator.
The job is the 10th house. Aquarius is on the cusp, so the traditional ruler is USaturn, at 17 degrees Pisces in the 11th house.
Is there perfection? Mercury at 14 Cancer and Saturn at 17 Pisces are in water signs, 120 degrees apart once the aspect is exact. Mercury is faster and 3 degrees behind, so it applies to a trine. Neither planet changes sign before the aspect completes, and Mercury isn't about to station. That's a clean yes testimony.
What about the Moon? She's at 12 degrees Capricorn, applying to a sextile of Saturn at 17 Pisces, 5 degrees away. The co-significator also applies to the job's significator by a soft aspect. Two testimonies agree.
Anything blocking? Check whether any planet between 14 and 17 degrees in the relevant signs could get to Saturn first. Say there isn't. No prohibition.
Considerations: 12 degrees rising is neither early nor late. The Moon isn't void and isn't in the Via Combusta.
Judgment: the offer comes. Mercury and Saturn meeting by trine in water signs suggests a steady, fairly formal process. Mercury carries no dignity in Cancer, so the querent may feel they have less bargaining power in the negotiation than they'd like. Three degrees to perfection gives the timing unit; with both significators in succedent houses, a horary astrologer would lean toward weeks rather than days.
Notice how little of the chart you used. Horary doesn't read everything. It reads the planets the question gives you.
A note on lost objects
Lost-item questions are a classic of the genre and a good test of the method. The object is usually signified by the ruler of the 2nd house, and the Moon is a general significator of lost things. If the 2nd ruler or the Moon is in the 1st house, or applying to the Ascendant ruler, the object is often close by. The sign it's in hints at the kind of place: fire signs near heat or walls, earth signs low or on the floor, air signs higher up, water signs near water or damp. Whether it will be recovered depends on the same logic as any question: does the object's significator perfect with the querent's?
Common mistakes
- Asking the same question twice. The first sincere asking is the chart. Casting again because you disliked the answer produces noise.
- Using modern rulers. Pluto doesn't rule the 8th house in horary. Mars does, if Scorpio is on the cusp.
- Reading the whole chart like a natal. Stick to the significators. Every extra planet you bring in is another way to talk yourself into the answer you want.
- Wide orbs. Aspects must actually perfect. "Nearly a trine" is not a trine.
- Ignoring sign changes. If the faster planet leaves its sign before perfecting, most horary practice treats the aspect as not happening.
Try it on a real question
Pick a question you genuinely want answered, note the exact time you first ask it clearly, and cast the chart for that moment and your location. Any chart tool that shows traditional house rulers, degrees, and applying aspects gives you everything horary needs.
If the terms applying and separating are new to you, read aspects explained first. Horary also leans hard on the Moon's condition, so the guide to the void of course Moon is worth reading alongside this one.