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Black Moon Lilith calculator

Black Moon Lilith is the point where the Moon’s orbit is farthest from Earth. It is not a body in the sky. It moves through a sign in about nine months, so your birth date usually settles it. You get your Lilith sign and a short reading.

Find your Lilith sign

Date of birth · time and city only if needed
The date is enough on most days. Add the time and city if your birthday falls on a sign change.
  • Lilith sign & degreeThe sign of the mean lunar apogee when you were born, to the degree.
  • Sign-change checkIf Lilith changed sign around your birthday we say so, with the moment, instead of picking one.
  • The Moon’s far pointWhat the point is, and how it differs from the true Lilith and from the asteroid.
  • What it meansA short reading of your Lilith sign.

This free calculator finds your Black Moon Lilith sign, the mean lunar apogee, from your date of birth, with no sign-up. Lilith spends about nine months in a sign, so your birth time and city are needed only if it changed sign on your birthday. We calculate the mean Lilith, the standard in most astrology software.

· How we calculate

How it’s calculated

The Moon’s orbit is an ellipse. Its farthest point from Earth is the apogee, and the apogee itself turns slowly forwards through the zodiac, once in 8.85 years. Astrologers call the mean apogee Black Moon Lilith.

We calculate it from the mean longitude of the lunar perigee in the ELP-2000/82 lunar theory (Chapront-Touzé and Chapront), the series behind Meeus’s lunar chapters, plus 180°. At J2000 that gives 263.35°, 23° Sagittarius. The true Lilith, the instantaneous apogee, can sit up to about 30° from the mean one. We calculate the mean one, which is the standard in most astrology software.

To decide whether the date alone is enough, we check every hour of your birth date in every time zone on Earth, from UTC−12 to UTC+14. If Lilith changed sign in that window, the result shows both signs and the moment of the change.

Black Moon Lilith in the twelve signs

A short reading for each sign. Find yours above, or read across for a friend.

Black Moon Lilith in Aries

Raw anger and a fierce independence. Lilith here refuses orders, reacts fast to being cornered and learns that wanting something for yourself needs no excuse.

Black Moon Lilith in Taurus

Appetite, the body and the need for security. Lilith here is stubborn about what it wants, and may carry shame around pleasure, money or desire.

Black Moon Lilith in Gemini

Words that were swallowed, and a sharp tongue. Lilith here says the unspoken thing, asks the awkward question and hates being told what to think.

Black Moon Lilith in Cancer

Needs and griefs from the family, kept out of sight. Lilith here protects its own with force and can hide a deep need to be held.

Black Moon Lilith in Leo

The hunger to be seen and loved without conditions. Lilith here is proud, dramatic when ignored and hurt by being treated as ordinary.

Black Moon Lilith in Virgo

Perfectionism, a harsh inner critic and a refusal to be of service on anyone else’s terms. Lilith here is uneasy about the body, and exact about what is wrong.

Black Moon Lilith in Libra

Desire against politeness. Lilith here will not be the agreeable one, and may feel jealousy or resentment inside relationships that look calm outside.

Black Moon Lilith in Scorpio

Intensity, jealousy, power and sexuality, at home in what other people avoid. Lilith here goes straight to taboo subjects and does not forget a betrayal.

Black Moon Lilith in Sagittarius

Rebellion against doctrine and a blunt love of truth. Lilith here dislikes being preached to, and needs freedom to roam and to disagree.

Black Moon Lilith in Capricorn

Defiance of authority and of rules written by others. Lilith here is ambitious with a ruthless edge, and cold toward anyone who plays by the book.

Black Moon Lilith in Aquarius

The outsider who will not fit the group’s norms. Lilith here uses detachment as armour and has strong views about what the group should stop doing.

Black Moon Lilith in Pisces

Boundaries that dissolve, longing and a deep, unguarded empathy. Lilith here feels everything in the room and is drawn to escape, fantasy and the sacred.

Questions

Asked often

What is Black Moon Lilith?

It is the mean lunar apogee, a calculated point on the Moon’s orbit, with no body there. It is named after the figure of Lilith in Jewish folklore. Astrologers read it as the part of you that refuses to be tamed: what you will not compromise on, and what you were told to hide.

Is Black Moon Lilith the same as the asteroid Lilith?

No. Asteroid 1181 Lilith is a small rock orbiting the Sun. Black Moon Lilith is a point in the Moon’s orbit. They are in different places, and charts that show both label them separately.

Mean or true Lilith?

Mean Lilith moves smoothly at about 0.11° a day. True (osculating) Lilith jumps around it by up to about 30°. This calculator gives the mean one, which most astrologers and most chart software use by default.

Do I need my birth time?

Rarely. Lilith changes sign about every nine months. The calculator checks your whole birth date in every time zone, and asks for the time and city only when the sign changed during it.

How long does Lilith stay in a sign?

About nine months, and it goes around the whole zodiac in 8.85 years. People born within the same nine months share a Lilith sign.

Go further

Lilith, with the rest of you

The natal chart book reads the planets, houses and aspects of your birth chart in plain language. Lilith is a point of emphasis, and it speaks best next to your Moon and Venus.

Natal chart book · $24.99Love reading · $14.99

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