Mean Lilith (Black Moon) represents the apogee of the lunar orbit (point where the Moon is farthest from Earth) as the Moon experience perturbations due to the gravitational pull of the Sun and don't orbit in elliptical path due the fact that don't follow the Earth center but the Earth-Moon Barycenter cause that an average projection of this apogee point location needs to be calculated, for this reason, we need to differentiate the Mean Lilith and True Lilith. The move of this apogee point toward all the Zodiac signs takes around 9 years to complete so in BTCUSD asset we only have one complete revolution so is difficult to emit any clear judgement of the zodiac sign location influence in the trend. However this imaginary body named Lilith is widely adopted by astrologers and is very important in Chinese Astrology, for this reason, we decided to contribute the indicator to support the research of Chinese astro-traders.
Note: The Mean Lilith (Black Moon) longitude indicator is based on an ephemeris array that covers years 2010 to 2030, prior or after this years the data is not available, this daily ephemeris are based on UTC time so in order to align properly with the price bars times you should set UTC as your chart timezone.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules.
You can favorite it to use it on a chart.