Planetary attribution
The tarot cards of The Moon
Cycle, instinct and what is known before it can be argued.
The Moon governs The High Priestess rather than the trump that bears its name, which catches people out. The Moon card itself belongs to Pisces. The distinction is real: The High Priestess is lunar knowledge held deliberately, and The Moon is lunar territory you are lost in.
Its pips are the withholding ones: reflection, refusal, and things that are not yet ready to be looked at. The Moon is also the fastest-moving body in astrology, which is why its cards tend to describe states rather than situations.
6 cards
The trump first, then the numbered cards that carry the same attribution.
The other planets
Where these attributions come from
The Hermetic Order of the Golden Dawn, in the late nineteenth century. They mapped the whole deck onto the zodiac, the planets and the Hebrew alphabet, and the Rider-Waite-Smith deck was built on that system, which is why most modern decks still inherit it.
It is a system rather than a discovery. The fifteenth century Italian decks had no astrological scheme at all, and other traditions map the cards differently. Every attribution on this site is the Golden Dawn one, and where a card is disputed its own page says so.
The Moon in an actual chart
This page is about what the tarot tradition attaches to The Moon. The astrology itself, calculated from real ephemeris data rather than described, is on our sister site.
The Moon on Memento Astra