Mayan Astrology

With the Mayan Astrology module you can calculate the Mayan planetary horoscope developed by Barry C. Orr and Bruce Scofield, and see the Mesoamerican calendar dates of a chart's day: the Maya Long Count, Tzolk'in and Haab', the other counts used with them, and the Aztec tonalpohualli. You can also see the day in the Dreamspell, the modern 13-Moon calendar. All three work for any chart in your database, from the same birth data as the Western chart, and all three are included in the Pro edition and above.

The Planetary Horoscope

The Mayan planetary horoscope shows each planet by the age of its synodic cycle, the time since its last conjunction with the Sun, with the 20 trecenas around the circle, so you can read a planet's cycle age and its trecena together. The center of the chart shows the day's number and sign, the first day of its trecena, the Lord of the Night and the year bearer.

The Mesoamerican Calendars

The Mesoamerican Calendars table shows you every calendar date of the chart's day at once, for the local date at the place of birth. Each row gives the date and a note: the day's place in its cycle, the date the cycle began, and the direction and color of its day sign. The table includes:

• the Long Count in b'ak'tun, k'atun, tun, winal and k'in, from the era base 13.0.0.0.0 4 Ajaw 8 Kumk'u
• the Tzolk'in, the 260-day count of 13 numbers and 20 day signs, and the trecena the day falls in
• the Haab' of 18 months of 20 days, and the five days of Wayeb'
• the Calendar Round of 18,980 days, with the dates on which the same combination came before and comes again
• the nine Lords of the Night, G1 to G9
• the year bearers of the Tikal, Campeche and Mayapan systems, with the date each year began
• the 819-day count: the last station with its direction and color, and the next station

The Correlation

A Maya date is converted to a Western date with a correlation constant, and scholars still disagree about it by a few days. You can choose from three: 584283, the Goodman-Martinez-Thompson correlation and the default; 584285, according to Lounsbury; and 584286, according to Martin and Skidmore. When you choose another one, every Maya count in the table is recalculated.

You can see the difference in a famous date. Pakal of Palenque died on 9.12.11.5.18 6 Etz'nab 11 Yax, which is August 26, 683 under 584283 and August 28, 683 under 584285, the date most books print.

The Lunar Series

The table also gives a lunar series for the same day, from the actual Moon: its age in days since the new moon, written as glyph D or E; the length of the current lunation as glyph A, 29 or 30 days; the number of the lunation since 13.0.0.0.0; and its place in the groups of six lunations that glyph C counts. The Moon's age is counted from the conjunction, while the inscriptions probably counted from the first crescent a day or two later, so the lunar series is not a reconstruction of a carved Supplementary Series.

The Aztec Tonalpohualli

You also get the same 260 days under their Nahuatl names, from Cipactli to Xochitl, according to Caso's correlation, which places the fall of Tenochtitlan on 1 Coatl, August 13, 1521. The Aztec count stays fixed when you change the Maya correlation. For each day you also see its Lord of the Day, one of 13, and its Lord of the Night, one of nine, as the Codex Borbonicus lists them.

The Dreamspell and 13-Moon Calendar

The Dreamspell is a modern calendar, published by José and Lloydine Argüelles in 1987 and 1990. It uses the 13 numbers and 20 signs of the sacred count, but its count leaves out February 29, so its 260-day cycle has drifted away from the traditional Tzolk'in. On December 21, 2012 the Maya count read 4 Ajaw, and the Dreamspell read Kin 207, Blue Crystal Hand. AstroApp keeps the two systems apart and shows the Dreamspell separately.

For the chart's day you get:

• the Kin, from 1 to 260, with its galactic tone, solar seal and color, as in Kin 34, White Galactic Wizard
• the wavespell of 13 days, the castle of 52 days, and the Earth family of the seal
• the oracle of the day: its guide, analog, antipode and occult Kin
• whether the day is one of the 52 Galactic Activation Portals
• the 13-Moon date, in 13 moons of 28 days from July 26, with the plasma of the day and the color of its week
• the Day Out of Time on July 25, and February 29 as 0.0 Hunab Ku, both outside the moons
• the year bearer, the Kin of the July 26 that began the year, as in the Red Galactic Moon year that began in 2026

The Dreamspell interpretation report describes the Kin of any chart in full: its seal, tone, color, Earth family, wavespell, castle, oracle, birth moon and year bearer. You can find it among the other interpretation reports.

Frequently Asked Questions

Which Mayan method does AstroApp use?

The planetary horoscope developed by Barry C. Orr and Bruce Scofield, with the synodic ages of the planets and the 20 trecenas.

Do I need to enter the birth data again?

No. You can open any chart in your database as a Mayan planetary horoscope, as a table of its Mesoamerican dates and as its Dreamspell day.

What is a trecena?

A 13-day period of the Mesoamerican sacred calendar. Twenty of them make its 260-day cycle, and the planetary horoscope shows all 20 around the circle.

Which correlation should I use?

The Goodman-Martinez-Thompson correlation, 584283, is the one most Mayanists use, and it is the default. Choose 584285 to match books that follow Lounsbury, or 584286 for the proposal of Martin and Skidmore.

Why does another calculator give a different Maya day?

Usually because of the correlation: 584283 and 584285 are two days apart. AstroApp also uses the local calendar date of the chart, so a birth late in the evening keeps its own day.

Is the Dreamspell the Maya calendar?

No. It is a modern calendar that uses Maya names. Its count leaves out February 29 and no longer matches the Tzolk'in, so AstroApp shows it separately and never mixes it with the Maya counts.

Which edition includes the Mayan features?

The Pro edition and above. The planetary horoscope, the Mesoamerican calendars and the Dreamspell are all included in Pro and in Financial Gold.

See Also

• Oriental astrology, for the other non-Western traditions
• Human Design
• Chart styles

Compare editions and prices.