At last weekend’s gathering of Sunshine Coast Astrology, the topic of cards came up. I was reminded of something I read in a fascinating little book by Robin Heath: Sun Moon & Earth – an invitation to the alchemical wedding. I purchased the book (along with three others in the series) at the gift shop of the British Museum in London. I see that the book is available on Amazon, although it seems to have a different image – maybe hardcover vs paperback.

Even before the Introduction on page 1 of the book, I was blown away by some “trivia” about cards. Our standard deck of cards is related to the calendar! There are 4 suites of 13 cards each, representing the 52 weeks in the year. If you add up the numbers 1 through 13 (1 + 2 + 3 + 4, etc.), you get a total of 91 – the number of days in a season. All four season total 364 days. A Joker is added, bringing the total to 365 – the number of days in a year.


The author also has us notice that the Moon and Sun in the tarot are numbered 18 and 19. Eclipses (which occur under a special alignment of Sun, Moon and Earth) are grouped into families, having a pattern that repeats every 18 years. This is known as the Saros Cycle.
The Sun and Moon also have a 19-year Metonic Cycle. Every 19 years, within 2 hours of exactitude, the Sun and Moon will be in their same places in the zodiac. You may be aware that we are to have a Solar Eclipse on 2nd October 2024. Both Sun and Moon will be at 10° Libra. Guess what? Nineteen years ago, back in 2005, there was a Solar Eclipse on 3rd October at 10° Libra. Nineteen years before that, a Solar Eclipse on 3rd October 1986 at 10° Libra. And nineteen years from now, there will be a Solar Eclipse on 3rd October 2043!
The Mayan calendar, Stonehenge, the pyramids – all constructed with a keen awareness of the relationship between Sun, Moon and Earth. Isn’t it funny how we take for granted the knowledge of ancient peoples and assume that we are so much more advanced today? It’s humbling to be reacquainted with some old awareness in something as simple as a deck of cards.



