Black Moon Lilith Calculator
Type your birth date. Lilith spends about nine months in a sign, so time hardly matters.
What Black Moon Lilith is
Black Moon Lilith is a point, not a body. The Moon's orbit is an ellipse, and Lilith marks its far end, the apogee, where the Moon is farthest from Earth. Astrologers named it after a figure of independence and refusal, and read its sign as the part of you that will not be tamed or made polite.
The apogee is pushed around by the Sun, so there are several ways to place it. Mean Lilith smooths that motion into a steady drift of about forty degrees a year. Other versions, called true or osculating Lilith, can be thirty degrees away. This calculator shows mean Lilith only and says so on every result.
We compute it ourselves from the published lunar formulas, because the ephemeris library does not include it. A birth date is enough; time and place are used only if you give them.
What each Lilith sign means
| Lilith in | Refuses to give up | Shadow theme |
|---|---|---|
| Aries | The right to act first | Anger kept on a short leash |
| Taurus | Pleasure on its own terms | Guilt about wanting |
| Gemini | Saying the unsayable | Words used as weapons |
| Cancer | Its own way of caring | Fear of needing anyone |
| Leo | Being seen as it is | Hunger for admiration |
| Virgo | Its own standards | Perfectionism turned inward |
| Libra | Equality in love | Charm used to control |
| Scorpio | Its secrets and power | Obsession and jealousy |
| Sagittarius | Its beliefs | Rebellion for its own sake |
| Capricorn | Its ambition | Coldness as armor |
| Aquarius | Being different | Detachment that isolates |
| Pisces | Its inner world | Escape and martyrdom |
Worked examples
- Born 1990-03-05: mean Lilith in
Scorpioat 13 degrees. - Born 1985-11-29 in London, Lilith at
20°03′Taurus. - Born 2004-02-14 in Los Angeles, Lilith in
Gemini
How this is calculated
Mean lunar perigee from Meeus ch. 50 (83.3532465 + 4069.0137287 T - 0.0103200 T^2 - T^3/80053 + T^4/18999000), plus 180 degrees for the apogee; T in Julian centuries of TT from J2000.