Compare
Chinese astrology vs tarot: a chart and a deck
Tarot works from a shuffled deck and the cards drawn; Chinese astrology works from a chart cast at the birth moment, and that chart reads the same on any day.
The short answer
A fixed chart against a drawn hand
A tarot reading is a spread of drawn cards read against a question, and the draw is part of the method: another shuffle gives another set. Chinese astrology fixes the input — date, hour, place — and the chart comes out the same every time. What varies is only how much of it is written out.
So the two are read for different things: a spread for the shape of a question now, a chart for what is standing behind it.
Which question suits which
A spread is often taken for a decision in front of you, and taken again later when the situation has moved. A chart is cast once and read over years: the palace it names does not change.
The tarot vocabulary — decks, spreads, the major arcana — belongs to that practice, and is not used on this site.
Which one you are looking for
For tarot — card meanings, spreads, a reading from a deck — that is another practice with its own readers.
What is here is the chart: twelve palaces, the stars in them, readings written out and signed.
All readings See a completed reading first Cast your chart first — free
Questions
Can both be consulted about the same thing?
Yes, and people do. They are different methods, and neither one checks the other.
Are tarot readings sold here?
The readings on this site are written from the chart alone; the deck is not part of the method here.
Can a chart reading be taken twice?
Yes. The same birth data gives the same chart, so it can be re-read years later. If a birth time or a city was entered wrongly, the reading is recast and reissued at no charge.